Side note - it would be if Github squished all of those down into reactions and next to the reaction added a line saying "we squished the following comments to reactions (show squished comments)".
YouTrack kind of has support for that https://www.jetbrains.com/help/youtrack/server/Workflow-One-... and I thought they muted the notification email for the comment, but I couldn't find any evidence to support my recollection. Similarly, I thought they had a whole series of "low value comment" handlers but also similarly I wasn't able to find any evidence of my hallucination