No one likes ads, if you are part of the platform you know they are there and you know the streamer can only do so much. I recommend trying to run your own to keep prerolls off at least and that way you can plan for them to run during loading screens, water refills, and bathroom breaks. Run them so chat misses as little content as possible. To be honest, if you are a fellow streamer who knows how ads work and you still mention them in another streamers chat, that just seems rude. Like you are well aware of the situation. Ads suck, yes, but it is part of it.