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Nevertheless, it was reinstalled a few months later within 2019:
Twitch introduced a cryptocurrency payment option in 2014 but quietly removed it in Q1 2019; it was brought back in June.
See.
https://www.coindesk.com/twitch-doubles-down-crypto-users-discountAs pointed out before, the “More Methods” seems to be the key, if bitcoin is still in play a payment method for subscriptions:
https://help.twitch.tv/s/article/how-to-subscribe?language=en_USSee More Methods will allow you to also choose from a wide range of Xsolla options, including Apple Pay, bank transfer, paysafecard, and digital cryptocurrency depending on your region.
There is no further explanation apparently, as to the regional limitations geographical scope.