>or that they hope the original participants are going to be notified of their reply so it'll get more attention than a new thread. Unfortunately, on some forums that's actually true and encourages this mess-making behavior.

Just last week someone posted a question on a thread from over a decade ago asking what the end result of building something was.

I and several other people party to the original discussion explained the result, the performance of the system over the past decade and that options were different now

Let's see Reddit do that.

Bumping threads from a long time ago is a feature. Not a bug.