Not really... the post I mentioned was not self-promotion was an essay I posted on my blog. The intent was to start a discussion around the topic, not self-promotion. As it stands I was not even aware the post was killed, let a lone the reason.
The account "rune19" on submission ID "31892247" looks like a clear effort to circumvent organic ranking and push your own content.
You have few comments and most of them are exclusively in your own posts, your karma is low, and all posts submitted look like attempts to draw attention to yourself and your work. I think the moderation is working exactly as intended, in which case explaining what triggered the moderation serves only to help you circumvent the guidelines/rules.
If you think you are being unfairly modded you can e-mail HN and ask what's up. I give it 50/50 on whether dang tells you why you are triggering automod or asks you nicely not to use HN for self promotion.
It's possible that you are not triggering any auto-moderation and it's directly a result of HN users flagging obviously self-promotional content. I think a good number of HN users are aggressively hostile to self promotion on HN because if that behavior is rewarded, you get more of it.
> Guidelines: Please don't post on HN to ask or tell us something. Send it to hn@ycombinator.com.
It’s not just you.