The original design used to have Scyther and Electivire. Scyther was always one of my favourites since Gen 1. I did like Electabuzz, but it and Electivire were not favourites - it was mainly chosen because it fitted in well with the design and made it more colourful (green Scyther + yellow Electivire + blue text).
Scizor is also a favourite, so when I redesigned the site I “evolved” the mascot to be Scizor. (There wasn’t room for any other Pokemon in the new header.)
There is also a funny coincidence someone pointed out to me recently. The first anime episode in which Scizor appears, one of the characters is making a “Pokemon Database”. I don’t really watch the anime so I couldn’t have taken it from there (and Scizor came later anyway).
