If you have a good offer and you place it in the buy/sell section and it goes on and away.....how long do you have to wait before you can make the same post again? I hope this makes sense, JR
Do you mean bump? You can't bump at all... if its a useful post like a change in offer and such... don't post few minutes after.. If your thread is a month old or so you can request to close it and open a new one.
Well you can't bump your thread as far FAQ but you may contact Mod if you want some changes in your topic/sell.
there's no hard and fast rule. too soon and you risk getting a 'duplicate thread' penalty. what you want to do is to ask mods to close your previous one, and then open a completely different offer selling the same thing. after all if you didn't get responses earlier it just means your copywriting or offer needs to be improved.
why a duplicate thread, if you feel like opening a old thread, you can always ask the mods! if it is anything that the mods feels correct, they will allow you. make some changes in the offer and start a new thread