Just under 2 months to Wincustomize.com's 10th birthday....and my joining.
One of my first 'jobs' was testing uploads [sizes, etc] for T-Man... to be sure the galleries worked OK. [That's why there's some odd 'crap' from me on here].
So that'll be 21st of March.
WC kicked into life a day or two earlier though, from memory....
At that time we [skinners] were all over the place.... Customize.org, Deskmod.com, skinz.org, and also the new [then] Deviantart.com.
It wasn't until [both] Deviantart and Wincustomize came along that skinners actually had a STABLE place to call 'Home'. The others [including the smaller/privateer sites] expired at one time or another, and much of that was attributable to their 'Commercial Model'. [note...I didn't once mention 'eFront' ---- darn].
Re User numbers, I believe the first 10 or 20 were reserved for Stardock people, and the one non-Stardock person I can recall below '23' was/is Doreen [21, I think].
Now THERE's a 'blast from the past'....