I did earn a lot that way as well! I got some $18 votes from a couple whales on comments, even a $80 from blocktrades once hahaha. I used to farm that. But now that the vote efficiency has been reduced to 50/50 and the vote value has gone down by a lot, people seem to have stopped upvoting as many comments and are instead focusing on using their votes for curation rewards (at least I am).