There is no such thing as a topic bump on this forum. Topics will naturally lock after 2 weeks from the last reply. Until those 2 weeks are up, replying to a topic is by definition not considered a bump. While a topic remains open, it is still relevant.
All posts that say “why did you bump” will be treated as spam from now on (with all the consequences that entails). Don’t do it.
Exception: some very old topics don’t have a 2-week timer applied to them. I can’t/won’t go back to fix them individually. If these old topics are bumped, I will apply the timer manually at that time.