Hello...I have a suggestion regarding the Pinterest Boards and I know it may not be a popular one, but here goes...
I suggest that there should be a limit either weekly,daily,whatever, on how many pins can be placed per member on their own items. The reason behind this idea is that some people have far less to sell than others, and their items get pushed to the bottom when members who are business sellers pin lots of their items for sale daily. The Plug your auctions thread has limits, and in effect the Pinterest boards are a plug as well, so I think that limits should also apply there for your own items. Of course if you want to pin other peoples items, I think you should be able to do so freely.