We've banned this account for repeatedly posting unsubstantive and flamebait comments. Please don't create accounts to break HN's rules with.

https://news.ycombinator.com/newsguidelines.html

Curious. Not even a warning, despite the fact that the very users that I'm emulating received warnings?

Warn vs. ban is affected by a number of variables including account age, how badly and/or frequently it has been posting abusively, whether it's primarily posting abusively, whether there's evidence of past abuses with other accounts, and probably some others I'm not thinking of just now.