Cryptocurrencies isn't supporting any wrong thing, rather cryptocurrencies should also be used a payment method just like the way our traditional currency is used.The viewers are the ones destroying themselves and not the society.
Yes, it is the usage of the crypto that makes it good or bad, just like the fiat money that can be used in good or bad, both ways.
Anyways, since we have discussed that porn is one industry where crypto is widely used, I never saw many platforms advertising here on bitcointalk about those services related to this industry. RedCAM.ME is the one announcing its services here, but usually we don't find other providers even know about this bitcoin forum
I think that wouldn't be allowed even if some day any porn site come here for the signature campaign. Bitcointalk doesn't tolerate pornographic material and that is why we have a rule regarding NFSW.
10. No embedded NSFW images anywhere. NSFW content must be marked accordingly.
I have seen some threads announcing about the porn sites such as this RedCAM.ME sort of announcement thread and a few others, but it never go beyond that to that campaign's advertisement level.