Short of having their account banned from the site entirely, no (and even then, nothing stopping them from pulling up anonymously or in an alt account).

If you don't want people watching your stream, then, you know, don't stream to a public platform like Twitch.

Why would you want to prevent them from viewing your stream. That is just too harsh!

[quote=You In The OP]Is it possible to block someone from viewing stream[/quote]

[quote=You 30 Minutes Later]It's not that I want to prevent them from watching my stream[/quote]

Something doesn’t add up here...

Yeah I mean, short of DDoSing someone so they can't use net at all, you're pretty much screwed.

As far as I'm aware, you can block people from chatting, but as long as you're putting yourself out there for the whole internet, you're gonna have stalkers. It's just part of the deal.

No, I don't believe there is a way. (Unless your an admin.) Why would you need such a thing to happen anyhow?

I wish they would allow straight banning because I get tired of seeing the same chatbot names lurking in my chat everyday :)