This editor is an ally of the skeptics movement (hence the Username), is on the lookout for vandalism and other deleterious content in Wikipedia, and is mostly interested in astronomy, in which he claims a modest expertise.
Skeptic2 has been an editor since 2006 October 4.
Skeptic2 was automatically updated from pending changes reviewer to pending changes reviewer and extended confirmed user on 2016 April 7.
His real name is Ian Ridpath.