I’m not saying stop asking for the feature, I’m saying that Twitch are well aware that some devs have asked for it, and that UserVoice is the appropriate place to suggest such features and for developers to show Twitch what sort of demand there is for them.
You’ve made your voice heard, so there’s no need to keep repeating, and while this feature at some point in the future may help developers it doesn’t help developers right now who need to properly test their Twitch integration which is why it’s important to teach new devs how they can make use of mock data based on the documentation.