The image is a reddit post with the following text (automatically transcribed):
I remember I got into an argument on reddit awhile ago with a person over Italian food. It got to the point they were following me into other subs to harass me. I clicked on their profile to block them and their most recent post was them drinking their own piss on r/piss. At that moment I realized I had spent so much pointless time arguing about the taste of food with someone who drinks their own piss as a hobby. This site is a shit hole.
As long as you’re not posting toxic stuff, you should just ignore downvotes because many people use them as disagree button instead of replying why they disagree with your points.
Additionally there’s downvote bots. They can even stick around with you. You comment, and a few seconds later you’ve got 25 downvotes.