Your last submissions were about Ukraine and the current situation there; maybe some mod got trigger happy with banning "mainstream news" posts?

:(

Possibly.

But they seem to allow military A10 and F15 posts, no problem.

Now they suddenly just made it so I can only reply in comments like once an hour, I had to wait a long time to reply to this.

You're submitting too fast. Please slow down. Thanks.

This is someone's cowardly way of bullying me off HN, or a big bug - I suspect the former.