It is a bit of a mess isn't it.
From what I can tell, it's a name change, Martin H Burall == Spydermb, he must have changed his name on the Dimes site.
BUT, where you are looking at the scores
http://www.netdimes.org/new/?q=node/5
is not where I parse them from. the Netdimes people provided me with some xml, and it seems as though the xml and the site do not quite line up..
It definitely has Spydermb in there with 137,000,000 though, so I would say it's actually more up to date than that page..
If you do a search on the site for him you get the following
http://www.netdimes.org/new/data.php?userName=Spydermb
Bok