What is the origin of your “rindolf” IRC nickname?
For more information about the name "rindolf", see the dedicated page about my Rindolf nickname.
Rindolf “Woman-hands” [Forgot the last name] was a Dwarven warrior I played on a series of AD&D 2nd edition sessions, and one of my favourite tabletop Role Playing Games characters of at all times. I probably picked up the name by analogy with such Germanic-originated names as Randolph or Rudolph. I'm not sure if "Rin" or "Rind" means anything in Germanic languages, but it has a nice ring.
The first IRC nickname I used was “dori” after one of the dwarves in Tolkien’s the Hobbit, and later on decided it was too common a name, so I switched to “gloin”, the name of a different dwarf. Then I wanted something more original, so I picked up “rindolf” and the name stuck.
If I had been able to change it again, I would have picked “shlomif” for my IRC career, because it is my handle almost everywhere else, but now everyone on IRC know me as “rindolf” so I feel it's too late (not to mention that, in my impression, it is common and acceptable to use a pseudonym on IRC, to show some creativity).
The running joke we have on IRC, is that Rindolf is the evil twin brother of Santa Claus’s goody-two-shoes reindeer, Rudolph and Randolph, who are among his arch-enemies. Rindolf is also one of the cornerstones of the Evil Reindeer Evil World Domination Evil Conspiracy, with the evil aim to spread the Reindeer Evil all over the world. You can find some of the manifestations of this joke in the IRC conversations quoted on my fortune cookies.