oh, i guess... one of the mastodon instances i had an account on vanished at some point, and i only just found out now.
sigh.
in this case it was i.write.codethat.sucks - my account was @Xkeeper but it looks like that's just completely gone (dns gives nxdomain) ...
@Xkeeper at the same time i can still see it here (?) so i can't tell if my dns is wacky/not working or if this place just happened to cache it forever ...
@lizardsquid figures