Thread:CzechOut/@comment-5179880-20130423223347/@comment-303594-20130424062607

A disabled account is not a global block - this is only done on request, for COPPA - or during the user rename processs.

There's no downside, really - as 99.9% of (non rename) disables are permanent. But I don't really see the upside - you won't block anyone who isn't already blocked by the system.