I just saw how some twitch user

[Noonz]

still not as big a simp as this dude
Florida man wired $200,000 to Bulgarian 'cam girl' before killing family, deputies say

Tbf tho i believe some of them do it themselves to encourage other users to do the same

I doubt that, because twitch takes 50% of sub money

so if she made like $1000, twitch will literally take half of that ($500)

twitch owns and runs the infrastructure and is giving her a platform. it is perfectly within reason for them to take half if not more of that money. if she doesn't like it, she's free to take her business elsewhere.