As at 6.15 pm, there were 831 people on UKP and 191 on Prossienet, ie, more than 4 times as many!
I guess a reason for that is PN's anti-adultwork mindset.
I don't use it, but from what I hear the use of the word 'adultwork' is limited to say the least.
As such, when AW goes down and people google it they come here and not there.
The downside is we've had a few new prossie members posting bollocks and touting today