This would allow streamers to accept both PayPal and cryptocurrency donations. Cryptocurrency donations allow viewers to mine their own donations for streamers and benefits streamers by reducing charge backs through PayPal. Crypto currency is an extremely fast way to accept donations.
Personally I'd like to see fast cheap coins implemented that gamers can mine. This allows them to mine their own donations for streamers. Mobile wallets are essential to allow users to donate easily.
I'd suggest Groestlcoin as a nice fit myself