I think you're right mostly because of WordPress. In 10+ years of professional web development, I've had, I think, 1 client ever who had PHPBB on their site, b

I think you're right mostly because of WordPress. In 10+ years of professional web development, I've had, I think, 1 client ever who had PHPBB on their site, but I work on at least 1-5 sites a month that are running a variation of WordPress (or just PHP in general). And every new site we setup is running WordPress on the back-end now. I've also never had a client come to me who was running a Ruby, Python, etc, system. The strangest it has gotten was a Cold Fusion site here and there, and maybe once a year a .Net / ASP site crawls through the door..... and we have pretty religiously completely converted the sites to PHP in these cases before we start to manage them.