Create a cheaper tier of Twitch Turbo which only has the platform-wide ad-free perk
Twitch should add a new, cheaper tier of Twitch Turbo (or call the cheaper tier something else?) which only has the platform-wide ad-free perk.
I know I can't speak for everyone, but I'm aware of at least some people (including myself) that would be interested in buying a subscription to remove adverts platform-wide (not just for 1 Channel), but don't want to buy the current Twitch Turbo subscription as we/I don't care for, don't need, or don't want the other perks of Twitch Turbo.
In my case, I only want the ad-free perks of Twitch Turbo as I don't stream, I only watch others. So I have zero need for the other perks (such as increased VOD storage time).
This cheaper, ad-free only, version of Twitch Turbo could be something like $1 or $2 USD per month - since it's only the ad-free perk, and would thus be affordable (at $12/$24 per year) - especially when compared to current Twitch Turbo's very expensive price of $11.99/month or $143.88/year!