One guy I commented on goes " nice comment. Now upvote"
This. This is extremely weird. I mean, I can totally understand the frustration if someone makes a comment, upvote their own comment with 100% and does not give you an upvote on your article. That's rude and selfish.
However, if you make a comment, that should be considered a token of appreciation, just like an upvote would be... But a comment isn't worth "anything" to some people because it doesn't add money to your wallet. I have seen established Steemians, people who've been members on Steemit for more than a year saying things like:
"Thank you for your comment, how about an upvote too?"
And that's weird. It's so weird... I can't even imagine what's going on in some people's heads.