This is interesting, but since all this is based on the ratings we have here, I would not make too much of it.
I consider my own rating to be dubious, compared to my OTB rating (I have a big library which I can't consult or even recall as well as I'd like OTB...), and there are others I have played on the site that are dubious (I mean this in an honest sense) in both directions.
pdunne, for instance, is currently rated in the low 1800's, and against him I have won 2, drawn 2, and lost 3 (we have some in progress, but he's still tough). I think he is actually a little better than me, but our ratings definitely don't reflect that. A rating is a number, but the board doesn't lie to me!
On the other hand, Levon Sargissian, Kings and pawns, and Ocean64 (who is an OTB friend of mine), are every bit as strong as their ratings suggest, and they beat the $%^$% out of me on a regular basis. Kings and pawns in particular leaves me in awe at how easily he plays and wins- I would imagine it's like what playing Capablanca would be like.
You just never know sometimes!