Anyone else's comments dissappearing randomly?

I have weird issue when my comments dissapear. Usually it's replies to someone else's subthread. I don't know for how long this has been going on, I've spent excessive time with you frens today and I've noticed just now.

Funny thing is it's never offensive shit, just random facts from my life I'm okay to share, basics math and chemistry (I wish I was joking), links, or comments responding to discussion with friendly manner.

Just want to know if it's quarantine being quarantine, or did I got cursed by le gods of leddit for never giving platinum to Bouman threads and I should create new acc.