I assume he's referring to #toribash, since that's where most of the more questionable behavior takes place.
Now, as for my opinion, IRC's always been a bit more exclusive than, say, the forums. There's a definite subculture of sorts established, and newcomers are usually treated as such. I think it would definitely help if people came in and acted like respectable adults, but let's face it: that's probably not going to happen anytime soon.
We've got nice channels set up for people who need help, and they can always make their own clan channels, but I'd say that people are making the mistake of trying to jump right into the thick of #toribash and get accepted right off the bat.
My advice-that-will-probably-not-be-taken: Start off slowly - introduce yourself nicely when you join for the first time, lurk a bit and see how things happen, then see if you can integrate. Don't jump in, flail around wildly, and then wonder why you get trolled/kicked/banned/trolled.