I refer to them as "DUI rides". They act like a motorcycle when it suits them and a bicycle when it suits them. I hate the damn things.
Electric bicycles however, are fine. They look like a regular bike with a small motor and battery assist. Sometimes you can't even tell it's electric.
I feel they need to differentiate between an e-bike that is primarily electric with some limp pedals hanging off for looks, and an electric bicycle that is an assisted bike. E-bikes are not people powered, nor are they for medical reasons, so they shouldn't be afforded the use of bike lanes and whatnot. License them, regulate them, they're the worst drivers on the road.