An aside : posting about this PDF to r/AmazonRedshift, a sub I founded about two years ago, caused what looks like an automated system to ban the sub.
No other information is given, other than a ban has occurred, no links or information to routes to appeal, or find out what happened, or why.
https://www.redshiftresearchproject.org/slblog/2023-09.html#...
(I see now the sub has disappeared from my profile, too. Two years of posts, gone - instantly, no warning, no reason, no information, no notification and no appeal process of any kind, so far as I can see. Reddit appears to be a risky platform to invest time into.)