Almost all that THOT content has been demonitized on Twitch. The advertisers complained, so it was all pushed to one place where the advertisers could avoid it. Then the top girls moved to doing the same thing in ASMR as they were doing in pools, and Twitch banned them. These women also used Twitch to funnel people to their Only Fans.
This was bad for advertisers who didn't want to be involved in this, and real female streamers (ie not "Twitch THOTs"), who were put under pressure to behave in the same way, or who were excluded from advertising campaigns because some of the big advertisers avoided all female streamers for fear of what they might do in a stream.