I say yes...
44 is always full as it is. 48 will just add 4 more slots. That's 2 more people per team. To face the admining situation up front, I would not really be intimidated at all by 2 more people on each team. In my experience on Dust 2, if you warn them once, they generally stop for about a half hour. Sometimes it takes to a kick to get the message across to the server, but once an admin has sternly proven their point, any "punk" doesn't feel as outgoing to cause trouble.
Just my opinion and from my experience, however.