[tokenadult]

There was a log-in code change on HN today that made a lot of people think they were site-banned,

https://news.ycombinator.com/item?id=5650171

but in fact they were not. The comments of the user you mention do not appear dead to me (I have showdead turned on).

[monsterix]

I am pretty much back in. Yes, there was some problem last night and some of the lines I edited/wrote got lost when I hit submit. Couldn't login for a long time thereafter, and unfortunately misunderstood the situation.