> Turning into a strict registration-only site is likely also problematic because this could cause them to be downranked by - surprise! - Google, this time in t

> Turning into a strict registration-only site is likely also problematic because this could cause them to be downranked by - surprise! - Google, this time in their incarnation as a search engine. There is steps they can take to have a registration only website while allowing Googlebot to authenticate.