Though I would like to say that I always see comments from the high-ranked members criticizing the newbies that their topic of concern is already been discussed on the old posts and they are just seeking for merit. I do not know, I really think that this is a critical issue or am I just overthinking it?
If the user (newbie or another rank member) find the response to his question in an old topic then his issue is solved and no need to bump the topic by thanking the OP imo.
If he didn't find the correct answer then better to simply start a new topic and mentioning that he followed the old topic steps and failed.
I don't see the point of bumping 95% of old topics in btctalk unless it contains valuable contents and i won't hesitate to bump it.