I have nothing against BST.
I have nothing against bumping posts, as per the rules.
What I would like to suggest is that people clean up their BST threads. Seeing a few threads with 6 or more pages of “bump” is rather silly.
I’d say try to trim those up to keep the cascading to a minimum. This is especially true to the more habitual BST’ers who are constantly changing the listing post due to additions, sales and trades.
I don’t think this should be a policy or a rule, but more as a courtesy for people searching BST. I’m just thinking of marketing: The easier you make it for people to get right to the information you want them to see, the better chances of the results you are after.