While self-promotion is a skill, the submitter's comment and submission history is painfully focused exclusively on their own work.
I can certainly appreciate being proud of the things you build—that's great—but it comes across as disingenuous when it is quite literally the only thing you contribute to the discussion.
HN is an unique place to get feedback for your own work. I certainly have opinions about others work as well but usually I keep my mouth shut and go back to work.
However—by your own description—HN is a place where you solicit feedback but can't be bothered to extend the same courtesy to your peers.
Think of it like a conversation. If I approach you asking for feedback on my projects but never return the favor, does that not seem suspicious?
For my own projects I like to get all the rants as well. Gives a broader picture. I have a feeling that HN doesn't have a very strict etiquette.
To be clear, I take nothing away from what you've done here: More tooling options are rarely—if ever—a bad thing and your presentation of riot is beautiful and clear, very well executed.
The first submission has caused quite a hot discussion, so submitting again the next day isn't overkill IMO.
Riot 2.0 was completed and submitted yesterday after lunch (Finland time), blog post was completed today at the same hour. We genuinely felt they were worth telling the world about and people seem to agree.