> 99% of the time it’s some dude who didn’t check the date on the thread and posts “omg me too!” on an 8 year old post.

Comments could be marked by mods (or voted on) to not bump a thread, making it a minor occasional annoyance rather than a real problem.

> I also think a technical reason due to the scale of reddit

Reddit also just stopped working on UI (other than to make it worse) a long time ago. Why not have an additional view to "new", "top" etc. that sorts threads as if new comments bumped them?

That one should only talk about what a lot of other people currently want to talk about, or only for a certain amount of time, is really a dead end to me.