Personally I think it is a good call. You see people listing stuff and it is their 1st post and you are never sure if they are stand up people or just trying to scam someone. Not that 50 posts makes you an automatic honest, upright citizen (I am sure you need at least 1000
) but at least it will be someone who has participated on the board and give people a chance to get a gut feeling.
Just my .02