It's nice to be able to filter in genres but I'm not a horror fan and when I'm looking for new games it would be nice to blacklist anything with a horror tag so I can see games without it and better curate my preferences
This suggestion is made with regularity. See this old topic for an answer.
Then. Why has this regularly made suggestion still not been implemented.
That's not a real answer, I made a whole thing about why that old broken "solution" doesn't work: https://itch.io/t/1236107/actual-working-tag-exclusion