We've fixed this now (https://news.ycombinator.com/item?id=29201489) so I'm going to detach this subthread and mark it offtopic so the thread can stay focused on immigration questions.

Btw, it's better to let us know at [email protected] about cases like this so we can be sure to fix them. I only saw this randomly. We're grateful when users watch out for each other and we're always happy to unban accounts when it's clear that they're using HN as intended.

(Detached from https://news.ycombinator.com/item?id=29200985)

What does this mean

I'm a moderator here. It looks like we banned your account early on because you posted something that broke the site guidelines. We have to be strict about this when accounts don't have much history because HN gets a ton of troll accounts.

Unfortunately, this also means we have to make guesses when there isn't much information to go on, and that leads to false positives. Your account looks like one of those, since it went on to participate on HN in a good way. I'm sorry about that—we always correct these situations when we see them, but sometimes it takes time before we see them.

I've unbanned the account now, so everything should be fixed. If you need anything else, email us at [email protected].

Every commented you've posted since 2017 has been silently hidden from almost everyone on the site as a punishment for something you've done to annoy someone at some point.

You've been talking into a void.