In case you aren’t aware, if you ever upload a game that’s tagged as NSFW, the itch.io front page will decide you’re fine with seeing NSFW content, and you will not be able to filter it out anymore (personally I think it’s a very strange feature). Here’s what the message looks like in my settings:
On an account that’s never uploaded something NSFW, you have the option to filter out seeing NSFW stuff, like this:
So it sounds like something FeyPixelSmith uploaded was detected as NSFW, and now itch is automatically showing them NSFW stuff, with no way to turn it off.