The Etymology Of NickNames?

not_cub asks: "In the Slashdot FAQ CmdrTaco says he hates when clueless reporters ask where his nickname comes from but also gives an explanation. I for one find this sort of explanation quite interesting. I guess we can all guess where 'CyberBob' got his name from, but I'd love to hear Slashdotters give their reasons for choosing some of the weird and wacky nicks we see round here (especially that Anonymous Coward guy)."