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Depends, Bitcoin seems to encourage those that seek privacy to use it. Therefore, a platform awarding Bitcoin, might not be the best idea especially since this platform would have little reason, other than providing Bitcoin compared to the competitors. I do believe, users on the popular streaming sites allow you to accept donations via Bitcoin, so there's already a place that you could accept donations via that. I think I've seen streamers at least put it in their description if not within the stream itself.
The platform is getting via advertisements in their apps is not a bad deal, the problem with their approach is that the ads are insufferable which means that there is no skip and every time the user leaves the app, they need to log in again. Stream sites that are accepting cryptocurrency donations are not that big because most of the time it is frowned upon their community because most sites do not get a cut from crypto donations. I have to disagree with it not being the best idea because I think incent just had a bad execution of their platform but if it was otherwise, it will be praised.