Escapist rages every time 4chan is brought up. Few of them actually know anything about REAL 4chan. Everyone thinks the whole website is /b/. It's not. You can immediately spot a board newbie (colloquially 'newfag') if they think every board is like /b/. There are plenty of friendly boards with actually good people on there. /ck/ has great cooking tips, /r/ is good for acquisitions, and /co/ is love. That's right, there's a board with a reputation for having relatively nice posters.
But even then, people complain 4chan is NSFW. This isn't even true. There ARE NSFW boards, but not all of them are. In fact, the background color of the boards changes if you go onto a NSFW board, and you will get a prompt warning you.
In truth, 4chan is about absolute free speech. There's a lot of vocal hatred, but a surprisingly large amount of good will, too. It is something that must be experienced, not described, and most of the people who will tell you about it here haven't REALLY experienced it for themselves. They're passing on rumors about how bad they've heard it is.