Posting for visibility because it's not getting much traction in Meta; downvotes register visually when you tap, but if you refresh the page they disappear. I posted this two days ago but, at that time, I thought it was just me and just a specific board. No comment from admin.

I'd appreciate if people tried on this comment; downvote and refresh. If the downvote stays, leave it. But if it disappears, upvote this comment (and the relevant child comment). That way we can get an idea as to how many people are affected (and if they're on mobile or PC).

I normally don't worry much about technical issues because it's usually a matter of something getting broken by an update and just needing to wait for it to be fixed. But, in this case, upvotes are not broken, suggesting someone intentionally disabled downvotes and I can't think of a non-sketchy reason for that.