(Unless, perhaps, we want to discuss systemic behavior, incentives, and adjustments — ie Hacker News as a system and how to improve it and so on — , but to do that without casting doubt on one’s intentions, it has to be done in a way that does not appear to justify questionable actions.)
P.S. All of this coming from someone who you should not put on a pedestal, BTW. Do what I aspire to, not what I do.
Imagine if everyone that had a blog, newsletter, rss reader, news aggregator site, or AI tool did this. What would that do for community and conversation? It would be miserable, we'd call it all spam.
Instead, I'd suggest making a root-level comment talking about the OP discussion and including their tool as part of their answer, as others have done. If they don't get visibility, so be it - that's how voting works.