Somehow Reddit has avoided being overrun by bot/affiliate spam and has become a better source of certain types of information. I don't know how. Perhaps some combination of the voting system (effectively outsourcing getting rid of junk) and algorithms.
I'm building a photo booth and an example from today: if I search Google for the best budget PC with discrete graphics cards, everything other than the Reddit link is garbage/affiliate spam. But a few clicks on the Reddit links and voila, real options.
Google itself seems either unable to stop their site from being full of garbage, or they just don't care because what are you going to do, switch to Bing?