Please don't block the video stream with Ads
In the middle of watching someone's exciting steam, an ad pops up covering the entire video while chat continues. Chat is then going crazy because something awesome just happened, yet we were unable to see it because an ad was covering the video stream. What a disappointment.
Make the ad go into a corner with sound or something, but please do not block the whole image. That's the reason why we are here, to watch the steamers. You want the ads for monetary gain, fine, but find a happy medium where you don't disappoint your customers. Badly placed ads drive more people away than keeps them.
This is how a service fully commits to showing that they have lost the purpose of their service. This completely says "Our purpose is to show you ads, and you have no choice about their timing or content" and not "You can see what a user you chose is hosting for you to see."
especially when its a long 1-2 min adds, and in some cases many adds occurring in a short period of time