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.
There was someone who used to DM me on Reddit to remind me that I was a c**t.
I think this went on for several years until I just got tired ,reported him to the admins, and had his account banned within the hour.
Other good one was having death threats sent to me by a burner account.
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Were you by any chance the mod of r/sciencediscussion?
Nah, largest sub I ever modded was r/boybands.