Suggestions

[Petie]

Found the culprit.

Ublock had an additional cosmetic filter going on, which was responsible for messing with the layout. Now everything is normal again.

Disabling all the other filters too (remote fonts, big media elements, javascript, pop-ups) has no effect on showing ads, though.

Interesting - that would explain why it was removing more than it needed to. Good to know if it ever comes up again!

While I'm here, maybe the FAQ page could be updated?

Having a typo as early as the second sentence ("There's a lot of way in which the content on this site can be used.") is pretty rough to read.

Most people won't have easy access to Windows XP these days either. Changing "Windows XP" to "Windows" would probably do - I'm unaware of any issues with the newer (or older, for that matter) versions of MS Paint. Personally, I'd recommend something that supporters layers and transparency like GIMP or Photopea, but I understand some prefer simplicity.

I can’t believe I never caught the lack of a plural in that first sentence. That has been fixed and the software recommendations have been updated.