I'd say try to identify these people and have a serious word with them? I'm sure Scar would take some draconic measures involving a pike I don't think it's 'legal' to disturb matches so get some punishments up or just ban them.
I love it if our or other matches get streamed and also like your streams and clam style a lot Would be stupid if you'd have to cut it back because of some idiots, as long as you like doing it generally.
This!
And also change default pw while scrim is being played.
And even more important then this is to return default password back once you event is over.