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I upvote comments on all of my active posts, and I obviously upvote other peoples content all the time, trying to disperse it widely across different interests of mine. I don't have an insane amount of steem power so it is not like my upvotes are worth much and the voting power is limited too. Read the white paper if you want to understand how the economics work in here.

It is your choice, of course, but, I am stating the obvious and it is directly related to your rant.
Even IF those were $0.10 votes, 10 * $0.10 = $1.00 and that is less than 1% of what you earn so far for this short post - a rant.
So, why are people making meaningless comments mostly?
Well, what and who do you reward?
Attention, even the negative kind, encourages the behavior and the kind of comments.
If you ignore meaningless comments and reward sincere and meaningful comments, then the right behavior will come.
It is a free country, but, don't complain about behavior that you yourself encouraged.
All the best!

you are not upvoting anybody you stinky liar

She upvotes a lot of us, male and female alike. She just has a low level of tolerance for stupidity, like most of us do.