Reddit actually does have a number of these. I'm not sure I want to link any, though.
Reddit's reputation of being better than 4chan is entirely undeserved.
As someone with extensive experience with both... it is entirely deserved.
No use comparing things that are the same.
After reddit got big, we started seeing (well, started speculating that we're seeing) a lot of people come to 4chan after initially cutting their internet discussion teeth on reddit. There were speculations of a secret irc cabal of redditors, who collude to drive threads offtopic and in general mould board culture to be more reddit-like. To this day I'm not sure if those allegations were insubstantiated. We did have several prominent spammers who comandeered fleets of hundreds of proxies and spammed threads they didn't like with random-generated posts. These were obviously not redditors, but given there are people who care enough and have free time enough... In short, 4chan is a magical place.