http://en.wikipedia.org/wiki/N00b
A matter of fact, I'll quote the article:
QUOTE
Newb and noob may have somewhat different connotations. Newbs are simply newcomers—noob and n00b, on the other hand, generally means someone who is obnoxious, annoying, or breaks the rules; whether they are actual newcomers or not is mostly irrelevant. Therefore, a noob may be someone who has been around for a time but still engages in behavior that he or she should have learned is unacceptable. Noobs are generally confident in what they are doing, but in reality are annoying others. "Newb" is not necessarily an insulting word, but "noob" is.
More experienced players are often encouraged to give friendly advice and help to Newbs, to support them as they tackle the learning curve of whichever game they're playing, and some game servers are set up explicitly for the purpose of allowing Newbs to gain experience before entering more competitive environments.
"Noob" can also mean a person who claims to know a lot about a subject but in truth does not. It was first used in hacker groups on the BBS chat systems in the 1980s. It is important to note that noob and newb are not necessarily interchangeable. Many times the term noob or n00b will be used by veterans to degrade a user for their lack of knowledge, or claims to know more than they truely do.
Recently, the spelling noob has been used more interchangeably with "newb", however, and is being used in a more joking manner, usually among friends and users on good terms when one user makes a mistake that most veterans would know better not to do, whereas a "newb" or "noob" wouldn't know better. For example, in the computer sense, a user on a bulletin board may call a veteran user as a noob in a joking manner because they didn't search for a topic currently open with the same discussion before posting a discussion of their own.
In online gaming, the term is also often used as a general insult. Frustrated players on the losing team may refer to the winning team as noobs. In this case there is no actual connotation of newness meant; the word is simply being used as an insult. By the same token, members of a dominating team may use the term "noobs" (n00bs) to further frustrate their opposition by implying a general lack of skill on the losing team's part, such as "camping" (staying in the general vicinity for an extended period of time) or wastefully firing at a wall. Noob might also be used by veteran players to criticize cheap tactics or overusage of unbalanced weaponry. E.g., in an online team game where friendly fire is turned off, a noob "tactic" would be to overuse explosives in cramped areas around fellow teammates. Noob also specifically applies in games where team-play is important, and the players choose to completely ignore the team structure and goals. Noob has been increasingly used on the X-Box/PC games in the Halo series to refer to players who primarily use vehicles to kill their opponents. In this case, it is used as a derogatory term, to infer that the player's skill is limited to the usage of a vehicle, instead of using more tactical or complicated methods against the enemy.
More experienced players are often encouraged to give friendly advice and help to Newbs, to support them as they tackle the learning curve of whichever game they're playing, and some game servers are set up explicitly for the purpose of allowing Newbs to gain experience before entering more competitive environments.
"Noob" can also mean a person who claims to know a lot about a subject but in truth does not. It was first used in hacker groups on the BBS chat systems in the 1980s. It is important to note that noob and newb are not necessarily interchangeable. Many times the term noob or n00b will be used by veterans to degrade a user for their lack of knowledge, or claims to know more than they truely do.
Recently, the spelling noob has been used more interchangeably with "newb", however, and is being used in a more joking manner, usually among friends and users on good terms when one user makes a mistake that most veterans would know better not to do, whereas a "newb" or "noob" wouldn't know better. For example, in the computer sense, a user on a bulletin board may call a veteran user as a noob in a joking manner because they didn't search for a topic currently open with the same discussion before posting a discussion of their own.
In online gaming, the term is also often used as a general insult. Frustrated players on the losing team may refer to the winning team as noobs. In this case there is no actual connotation of newness meant; the word is simply being used as an insult. By the same token, members of a dominating team may use the term "noobs" (n00bs) to further frustrate their opposition by implying a general lack of skill on the losing team's part, such as "camping" (staying in the general vicinity for an extended period of time) or wastefully firing at a wall. Noob might also be used by veteran players to criticize cheap tactics or overusage of unbalanced weaponry. E.g., in an online team game where friendly fire is turned off, a noob "tactic" would be to overuse explosives in cramped areas around fellow teammates. Noob also specifically applies in games where team-play is important, and the players choose to completely ignore the team structure and goals. Noob has been increasingly used on the X-Box/PC games in the Halo series to refer to players who primarily use vehicles to kill their opponents. In this case, it is used as a derogatory term, to infer that the player's skill is limited to the usage of a vehicle, instead of using more tactical or complicated methods against the enemy.
Hope that helps. I don't want you to think you're a n00b, that's all.
And, to top this post all off, welcome siner, Empathy, and bettermanlamia.
Have a good time, and like everyone else says to ya, follow the rules.
I suppose you are right, though, when you take in the ratio of active members. Do watch out for some of the older members, although, most of us are pretty nice when not ticked off. 
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anyway as i already said please read teh rules, don't spam and be good! XP 
your new Ava/sig set?