It did have to do with Jim Thorpe! Unbelievable! I just got around to reading wwh's link and there it was! In part of octothorpe theory! Here, I'll paste a little:

He was apparently at that time active in a group that was trying to get the Olympic medals of the athlete Jim Thorpe returned from Sweden, so he decided to add thorpe to the end.

Unbelievable, even if theoretical! Thanks, wwh.

Why were people working to get Thorpe's medals returned to Sweden, by the way?

Best regards,
WW