I banned the other account* before I banned yours. But that doesn't and shouldn't matter; you've been badly abusing HN regardless of what anyone else has been doing. Pointing the finger at others is irrelevant.
* We don't necessarily reply when banning an account without much history on HN—it depends on a number of things, like whether they appear to be a spammer, whether we've banned them in the past, and so on.
https://news.ycombinator.com/newsguidelines.html