Most people who are serious about doing the Twitch thing, even if it's just a serious hobby, pretty shamelessly spoof viewers. Even if you don't want to be dishonest about it, it is in some ways unavoidable. Have the stream open while you're on to make sure that everything's working? That's one viewer. We do group streams and people cycle in and out, so we keep a laptop with the stream open outside the recording room; that's another. People open it on a phone to check chat, that's another.
The first case there is even officially sponsored by Twitch. Their live dashboard page, by default, embeds a muted output of your stream (among chat and other controls).
