What's wrong with monthly (good) streams instead of weekly (pointless) streams?Well, they do that too - Thursdays (theoretically).
Is it just mis-communication? They run the lunchtime streams but don't tend to say upfront 'no news, we're just playing' - so it's not incredibly surprising people turn up and ask what is new (though some of the repeat offenders certainly know better). And so each time you have the 'presenters turn up, introduce themselves, read the chat, tell people they are in the wrong place' narrative, rather than being more up-front.
Maybe they need some marquee text scrolling across the screen saying 'No news, just bantz' or something (as people turn up throughout the stream because ... streaming).
Things about all this is - it takes time to do interesting stuff. The answer we'll probably get if we demand 'only interesting and innovative streams' is probably 'on this month's stream we have ...'
I could be wrong, since I don't watch let's plays, but to me it seems like there are only 80 people watching it for the sole purpose of spamming pointless questions.