Originally I had the name Ampera (not on this forum, but elsewhere).
That was actually something I had come up with when I was younger, before I found out it was the name of a car. I still use it, and actively prefer it, but I don't use it here since I can't change names.
TwoOfFive is an obvious reference to Star Trek's Borg race, which uses fractional names. I don't much like the name anymore, and the EEVBlog is the only place I use it afair. It's not that bad, so I'm not too upset.
Funnily enough, the reason I use the flag of San Marino as my image is for two reasons, neither of them are because I am Sammarinese, which I am not. The first reason is I just happen to find the nation interesting. The second reason is at the time, it was my only picture available on my computer.