On one of my blogs I've been seeing a massive increase in visitor registrations. Literally went from 1 or 2 per day for the last 2 years to 50 - 100 per day. However, there is a negligible increase in visitors to the site. Does anyone know of any marketing scheme or other reason that someone would register with a blog. There's never been any extra permissions for registered users. Really can't put a reason why there would be such an increase but I'm fairly certain that it is not legitimate registrations. Any thoughts?
I've never completely understood the "logic" behind spam registrations but I suspect it's just to get a URL in front of you. Is it a multisite blog where people actually sign up for their own blogs? If not, why do people register on it?