One thing I find fascinating about most noobs is that they always want to be right, even if they don't have even the slightest clue of what they're talking about, they want to be right.
For example:
A: You seem to be acting like a noob.
B: LIEK ZOMGZ EYE AM NOT A NUB UR A NUB!!!!11
A: I think you're just proving my point, do you even know what a noob is?
B: LOLZORZ A NUB IZ U COZ UR ZUCH A NUB NAD U ZMELL LIEK FIHS!!!!111
This is the most common case, the noob thinks he's being insulted and says that the other person is a noob, or just does everything to say he's not a noob. Let me tell you one thing, people who letteraly say they're not a noob, usually are. (people who say they are a noob usually seem to know what they're talking about, look at SN for example)
Also, bad spelling is not nessecarilly a sign of noobiness.
These are what I think are the most common reasons noobs type they way they do:
1) They're just stupid.
2) They think it's "leet" to type like that.
3) Their English skills are below average.
4) They try typing way too fast
5) They copy other noobs because they posts so much, and therefor seem like experienced members to the noob, causing a chain reaction.
I type "teh", "taht" and "liek" all the time, I just take the time to google spelling check my posts and to read them again before posting.
We need a guide on "how not to be a noob in 5 easy steps"
Well, this concludes my noob research for today.
So, yes, SC, you seem like a noob