I was serious about the editing. I'd rather not scroll through 4 pages.
It doesn't bump the topic if I "edit" it.
Doesn't need bumping. If people are interested in your progress they'll check. If really needed you could add the odd bump.
Scenario, what if I wanted to create a topic in runescape discussion right now, you'd be bumping over it every minute

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Don't know the rules but that's my opinion.