Naming the property `wpcom` would feel weird to me.

I think dropping the `is` prefix is fine in most cases when the property name is an adjective (e.g. visible, editing). In this case `wpcom` is, if anything, a noun, and doesn't fit well as a property name. `selfHosted` would work as an *adjective* though.

Anyway, I'm probably overthinking this and `wpcom` would work just fine. There are a lot more properties to correct, so #712 :wink: