Originally Posted by
oliver2002
You can download your PMs as csv and avoid overloading your PM mailbox

Yeah, but imagine if Google said the same thing about Gmail. It's only text FFS and it takes the admins 10 seconds to fix and total cost would be close to zero.
I'm a vBulletin administrator myself and PM limits are nothing to worry about compared to messing with loyal day-to-day users contributing to the Community.