Looking at this entry http://www.ispot.org.uk/node/41188 it seems that one of the people who has agreed with the ID is listed as "anonymous spotter" and is not a name that can be linked to. What's that about?
Its possible it might have been someone that left ispot, I think one or two people have.
Yes, that is the explanation. We have a lot of users now and occasionally people have reasons they want to leave. Usually nothing to do with iSpot itself.
University of Edinburgh and Biodiversity Observatory (OU)
I have also noticed this plus a not verified in brackets after the username,is this also an ex ispotter.
Yes, it is.