My surname is the extremely German "Gross" (pronounced just like you think it should be...don't be shy!). A friend at work and I were talking about nicknames a few years ago, and I mentioned that I'd never really had a nickname. He immediately began calling me the more Italian-flavored Grossi; in fact, for the rest of that school year, I had several students who followed his example.
When I found my first cache, I signed the logbook as Grossi. After I returned home to register, I decided my online persona should match the one I had just signed in the logbook. For years, it has always bothered me when people dropped capitals and used other shortcuts for online typing...maybe that's just the inescapable English-major part of my personality. After a bit of deliberation, I decided I should just "get over it," and registered as the lowercase grossi. It hasn't helped me with my aversion to incorrect online capitalization, but I'll forever remain grossi in the geocaching world.