I feel the same about those communities. I am supposed to upvote (like) a post i found interesting.

I also agree with travel posts. I have some awesone ones. More like taking you places you have been or would never be. And with some good narration. There are other themes like challenge, daily log and others that little 'substance'. Then again, that is subjective.

Steemit is big enough to find content that you like and if you feel something with insane rewards does not justify it then you can flag it.

Flagging is not for everyone (that is one issue i have with steemit). Else it will be like starting a war you already lost.