"Upgrade" private message box
I don't know about the limit per amount of posts or rep, but I for one go through well more than my 175 message limit a day, I'm clearing out my box 2-3 times a day.
I've done some good business on here and would be very glad to pay to improve my PM space. Maybe a $25 one time charge for 2000 message limit, or something along those lines? But I definitely need something!
Let me know what you guys think!