Unfortunately, Belle Delphine started to decline as soon as she started doing porn.
People knew there would be leaks and so fewer and fewer people went to her OF.
Her last attempt to return to OF was with Mia Malkova, without much result...
She proved that sexual content is consumed and once it's done, there's no going back possible.
People like Idiefake and scamouranth know this now, so it's harder to force them to push their limits.
Especially when idiots simps buy any picture without thinking.