For anyone interested, the nick "Frobnicator" is a derivative of "frobnicate", which I haven't heard before. I started using the nick in 2000. I take it to mean 'one who frobnicates'. Here is the dictionary.com definition:
/frob'ni-kayt/ (Possibly from frobnitz, and usually abbreviated to frob, but "frobnicate" is recognised as the official full form). To manipulate or adjust, to tweak. One frequently frobs bits or other 2-state devices. Thus: "Please frob the light switch" (that is, flip it), but also "Stop frobbing that clasp; you'll break it". One also sees the construction "to frob a frob".
Usage: frob, twiddle, and tweak sometimes connote points along a continuum. "Frob" connotes aimless manipulation; "twiddle" connotes gross manipulation, often a coarse search for a proper setting; "tweak" connotes fine-tuning. If someone is turning a knob on an oscilloscope, then if he's carefully adjusting it, he is probably tweaking it; if he is just turning it but looking at the screen, he is probably twiddling it; but if he's just doing it because turning a knob is fun, he's frobbing it. The variant "frobnosticate" has also been reported.
Between '95 and 2000 I used the nick "Ixion" based on the Greek mythological king who did some pretty nasty things, incluing try to bed a god, and was punished.
Before that I went by "Zug", which I got from my older brother, but had to stop when Warcraft II came out and used "Zugzug" as a quote from one of their characters.