I couldn't find any decent comparison among porn actors, but rates of HIV infection among male sex workers who have sex with men seems to be disproportionately high
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4517560/ .
So on the strictly factual matter of whether she would expose herself to (some) greater risks by having sex with performers who have sex with men, she might have been correct.
Regardless, this is very sad, whatever the reasons(s) for her suicide. It is very unlikely that online bullying would have helped her state of mind, and this is perhaps a cautionary tale that no matter how righteous one's cause there has to be a line about what is acceptable online behaviour.
I am startled by the level of possessiveness regarding a woman shown by some of her online detractors, and how attitudes seem to have been coloured because of her line of work. Adult performer or anything else no woman (or man) needs any reason to refuse consent. Consent is something given and if she didn't want to have sex with someone for any reason whatsoever, no matter how "shallow" or "wrong" someone else thinks that reason is, whether just because she doesn't like the way they look, or their voice, or how tall they are, or their attitudes towards politics, or anything else then she is in the right.
If you try and pressure someone into sex - even if it's with someone else, and especially if it's with someone else for your viewing entertainment - or if you try and guilt someone into sex then you're doing something seriously wrong and need to stop. Porn performers are human beings first and foremost. They have the same rights as everyone else and sexual bullying or harassment of them is just as wrong. Them having a liberal attitude towards sex doesn't give anyone an entitlement over their bodies.