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There are a lot of people who just reply "Nice post", and other things, without providing any feedback. I suspect they may just be looking to add to their post count & reputation count, by commenting anything, even just a picture without addressing the content of the posts. This is a bit annoying. I think I may start to flag them as you suggest. It adds no value whatsoever to the post or Steemit... I hope they don't get part of the curation rewards for commenting such things... lol.

Peace.

Nice post, duh, I mean what a great reply, I.E. I totally agree with you.

I always just check their page for their previous comments first. Their overall comments give a much better idea of whether or not it's a bot

This is the world where people think it is okay to say TL;DR. That still blows my mind. There was a time not long ago that no one would say "That's too long, I didn't read it" and then start to talk about it anyway. They'd be embarrassed and ashamed. Now days people are sometimes proud of saying TL;DR. In the world of twitter I believe as the flood gates open there will be a lot of short responses like this. I agree with you though. I personally very much dislike the TL;DR term and I do like seeing people express themselves.

I think our attention spans are getting weaker! We all need to take like monthly week-long breaks from all social and televised media. Read a book maybe or take a holiday but definitely people are changing due to the amount of stuff we see but can't take in nowadays.