If she started Onlyfans and didn't have her Streams yeah she might fail on OF by getting lost in the horde of OF thots, but if she started an OF now with her Stream (and being a pretty big streamer) she would be a huge success on Onlyfans as the people she pulls over to OF from streams would probably push her on OF so people who have never seen her streams will find her, making her an even bigger success on OF
Although depending on a few things she would also effect her success.
Like if she hardly uploaded, and went months at a time between posts and then if those posts where always tame and just her in underwear or lingerie, even though she would probably look sexy AF in them after a year of only a few posts where they are all just lingerie, quite a few people would leave especially if her subscription was expensive and her PPVs are always at least £100 ($127 USD the day and time this was written) and you only got a maximum of 5 pics of her and they are basically identical pictures, also imagine if the only time you saw pictures was from PPVs as she never posted pics to her wall, without heavy blurring first.
and lets be honest if she did do OF or similar things it would probably be how i just described it.
I am however hoping she does do OF and does actually get into it and shows her tits, her pussy and penetration (by a nicely sized dildo, maybe by a guy, although one OF model i like i prefer her toy content to her B/G stuff, so)
Basically if she was doing partners id probably prefer the partner just be a toy rather then a guy...although if the partner was another woman and a toy that would be the best probably