The big issue with ads is that only 'partners' are allowed to turn off pre-roll ads, and in order to become a partner you need meet certain requirements all bas

The big issue with ads is that only 'partners' are allowed to turn off pre-roll ads, and in order to become a partner you need meet certain requirements all based around getting people to watch your channel, which is difficult because most people (me include) will not sit through ads in order to watch some small streamer for a minute or two to see if they are interesting. Twitch seems to actively work against small streamers trying to grow their brand.