The imagery in this post lulllzzz . . but your points are valid.  One of the coolest things about the blockchain is all the information is here, out in the open.  I wonder if the most egregious offenders knew that something like this would happen?  

To clarify, I do sometimes upvote my comments . . but ONLY if they are pretty relevant and I don't want it to get lost under 25 other comments.  I do it sparingly.  But my upvote isn't worth 5 or 10 bucks haha

But recently, I have had people comment under my posts with a short sentence and upvote it 100 percent (it seems), while in contrast, the upvote on my post was given a much smaller sliding percentage.

I mean, it's not against the rules.  Is it tacky?  Yep.  Bringing this to the light is the only way to get it to lessen.  Maybe since the hard fork, people just wanted to go on a massive self upvoting frenzy?  I don't know . . I'll let you more experienced users keep discussing it . . but in the meantime . . capturing the behavior on GIF form :)

"Why would you do this?"
https://media.giphy.com/media/l0OWjPP8kDpmEndFm/giphy.gif