Personally...I'd rather see the VM's kept to 2000 limit and the PM limit raised instead. I tend to write more content in my PM's than VM's....but I'm sure many ppl are opposite.
On the other hand, I do VM more than PM. It's just that my vm's are shorter.
I really don't want to see someone leaving a 4000 character vm on my page....or worse, a couple of them in a row. Then again, we do have the option of deleting them, so I guess it doesn't really matter....
Now that I've talked in a bunch of nonsensical circles, I'd better go..