Mostly_Harmless

It also works on all sites, which is why FF is no longer my daily driver.

I think you're going to begin to see a lot of that on Reddit. I overwrote and delete my ~10 years of comments and posts before deleting my account. I imagine a significant number of others have/will too.

I'm not sure if you're old enough to remember Digg, but they also alienated their users which caused users to migrate to Reddit.

https://d3.harvard.edu/platform-digit/submission/the-demise-of-digg-how-an-online-giant-lost-control-of-the-digital-crowd/

I have over 13k. My bot is keeping my comment list at 15 max and I'm not posting content. Been trying out kbin instead.
I'm hanging around until the end of June, but once Apollo is dark, I'm gone.