Why does found footage get such a bad rap? I feel like a lot

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Why does found footage get such a bad rap? I feel like a lot of people just hear the genre found footage and automatically write a film off without even watching it. Which is stupid, since some of the best horrors in the past few years were found footage. You get your typical "how many more of these do we need" argument, but you could say the same for your average ghost flick or whatever stupid demon shit they push out year round.
If you don't like found footage horrors than you just don't like horror movies. Now, tell me exactly why you hate found footage or why you appreciate them like i do.