This seems like an opportunity, not a problem. Since most platforms simply don't get traction at all, you have something. It's opportunity that involves problems (or "challenges") but you've gotten somewhere on the market chessboard. And most "growth hacks" present challenges.
That said, it's hard to believe that onlyfans wasn't aware they were effective a porn site. Maybe Voat was more naive since white supremacy doesn't monetize the way porn does but I'd be skeptical there too. The Internet has a zillion places for any population to go so there isn't a single "off-brand" that a undesirable population X is fated to go to.
Have a look at the front page of Voat. I’m not even gonna check it myself because I’ve seen enough. I guarantee you that 50% or more of everything on the front page of Voat at any moment will be very obviously white supremacist type content. They know. And by letting those people dominate their platform for so long, they are effectively saying that white supremacists are welcome on their site, and that they are ok with giving a platform to people who are looking to spread hate against others based on ethnicity and nationality.
Voat shut down last year (I actually wasn't aware until reading this thread and trying to check the frontpage)
It doesn't appear to be ran on the same codebase or the same database as the "old" Voat, but it can essentially be considered "back".
This time the site above did actually have some content that match the description. Looking at the top 10 on the front page, 8 is anti-vaccination discussions and 2 is anti-jew. That is significant more than any of the other sites I have looked at, and for once I can verify what the person claim to be true.
(As usual people demonstrate how appreciated independent verification is).
It is both. If money is the primary driver you should simply accept the opportunity and pivot. However I would guess that the people who founded, worked at, and invested in these companies before the brand change were probably a little uneasy about that "growth hack". I know I would leave any company that to pivoted to white supremacy or porn. The former for personal moral reasons and the latter because our societal morality creates a stigma that isn't worth dealing with.
Plus this content is generally kicked off the original platform for some reason other than morals. It is usually because users are abandoning the platform or other companies are refusing to work with them. Embracing this content can therefore result in headaches like payment processors or cloud providers refusing to work with you.
The amount of money in porn overall is vast, generally estimated in the billions.[1] Some pariahs get a lot of money.
I'd agree on white supremacy, still.
[1] https://finance.yahoo.com/news/porn-could-bigger-economic-in...
Voat only became "Reddit for white supremacists" because Reddit was pushing many of those users off their platform. Only Fans only became "Patreon for sex work" because Patreon didn't want those users on their platform. Anyone who wasn't one of those groups was better off just sticking with Reddit and Patreon and that only became truer as the reputation became more and more ingrained with the platform's brand.