You somehow thinking that the word "lemmy" is from lemon...? That's a level of idiocy that shouldn't be possible. It's Lemmings, and the logo is a lemming, which is obvious. How the fuck is it even possible to miss any of this?
if you were actually around long enough there were literally polls of what to call Lemmy users. Lemons was actually the top name for a bit, but lemmings won out. So. Try not to be so needlessly mean. It was named Lemmy not just because of the animals called Lemmings, but also Lemmy from motörhead. that's like two sentences into the Wikipedia page.