I actually put some thought into this Walrus

the way I see it is without a script to make things equal the newer the blog the more advantageous trading would be.
A well established blog is going to produce more traffic and then there's also PR to think about

One last thing that comes to mind is the fuckme factor, I'm sure you can trust the regular board members to not do anything shady, but what if a newcomer comes along, without a script to monitor the trades you would have to pass on trading with anyone you don't know