I totally disagree. Early in the morning even on weekends, scrolling through the first few pages you can find people talking under ember-light about certain things you'd find no where else on the site or even on the internet, and I don't mean anything illegal.
Knowing this type of thing takes a certain amount of experience and dexterity pertaining to the 'net that frankly most 4chan users lack.
Personally, I can talk to most people about anything casual and have a genuinely good time, so I enjoy most of the things I get into on /b/ regardless of what it is or whom, but I'm kind of an odd individual, and I'm very happy. When they say this site is a trap for the pathetic and strange, it's true, but that's true for the internet and has been, well, almost since it's existed in the first place