Not related to GitHub but the same issue is a pet peeve of mine in Whatsapp and Facebook messenger groups as well. Everything's a message so you end up getting notifications for people sending thumbs up or what have you[1].

It really clutters the conversation so when you're trying to find, e.g., the flight information, or the link to $IMPORTANT_THING, that somebody posted a few days ago you end up scrolling through screens and screens of total guff.

I wish there was a quick way to collapse messages that aren't relevant or useful, and that goes for GitHub issues as well.

[1] Apart from the fact this is distracting, and potentially a nuisance if you're working, driving, whatever, it also drains your phone's battery.