Do they have ads?
Well, I went to check two forums, one of which I thought used phpBB and one I was certain did. It turned out that they both used inVision instead, although I'm pretty certain that the second one used phpBB at some stage, in fact I do recall them being offline for a couple of weeks a year or two ago due to a change of platform - it looks like they ditched phpBB and changed over to inVision.
I then went to check out some others I haven't visited for a few years at least but I recall as having an identical format to Female First. Unfortunately all but one of them are defunct and any attempt to follow links to them results in error messages. The one that is still around (busaustralia.com) still uses phpBB, has all the avatars displayed and does not have advertisements.
Visiting that forum brought back a few memories, including a four page thread I started off about tram conductresses in World War II (I think someone made a passing reference to them and I decided to investigate further). I do, however, recall that one reason I left that forum was something to do with the behaviour of a small number of their members, so I don't think I'll be going back there again.
Sure God created man before woman. But then you always make a rough draft before the final masterpiece.