If you simply edit your last post and put new information about the trades, your thread will remain buried somewhere (If no one replies on it) and no one will notice if you posted any new trades or not.
How about this: Edit the post, then create a new one with just "Bump". That needs to be at least 24 hours after the last post.
When you bump it again, you delete the previous bump.
A better option will be to copy the last post content, delete the last post, and make the new post with the old trade data (last Post) + the new trade data. This way your thread will also be on top of the list and the new information will also be posted and there will be no bump related issues.
I do that sometimes (
example 1,
example 2), but only in certain topics.
(excluding bumps and reserved posts by the thread starter)
Lol, are you lecturing me on the forum rules?
How's this one:
21. Old bumps should be deleted. [2]