Maybe. I think anyone that comments to you as against knows nothing and asks what it is, probably has in their mind that "It's a device to quit". That's what I was referring to.
As regards what to call it / how to describe it - well, it's an alternative *something* system, pick your favorite, I guess. Alt nicotine system, alt smoking system, alt particulate cloud inhalation system, whatever. Some people don't like the association with smoking but to me that feels a bit dishonest. I do it because it looks and feels and satisfies like smoking and is likely to be less harmful, and I try and set up my kit so it's as similar to smoking as possible; maybe others do it for other reasons.