It is only a matter of time until "Search term + Reddit" leads you to a thread with multiple, legitimate looking comments with varying degrees of upvotes and downvotes, and the entire thread has been ran by a marketing firm/search engine hit squad.

I too am guilty of trusting the Reddit concencus when searching, and if there were a few legitimate looking threads that had been planted I probably would have eaten them up.

Sure you get the occassional comment or link share, but I'm talking like 300+ comment thread carefully executed.