This was a reply to the same question further down Chris.
Bit of background history first - since the launch of p8ntballer we have had a very substantial increase in site traffic each month. Although this is great it does have it fall backs, mainly operating costs - the bigger you get the higher the operating costs.
On launching the new forums we took the view, for the time being, to try and reduce the potential overheads hence we disabled the PM system. We will review this situation on a regular basis.
L8r
Joe
Hope that answers your question.