It's not that bad to get a partnership with pornhub, because porn industry has a lot of money. Simply investors were waiting for a partnership with Amazon... that's why Verge price went deep down, but I don't think it will take a long time to recover.
It has nothing to do with a partnership though. They paid Pornhub to add them as a payment method. People that are buying porn are not going to exchange their fiat to bitcoin and then exchange the bitcoin for verge. And oh crap they didnt buy enough to pay for fees, so they have to repurchase a small amount. It doesnt work right now, and it certainly wont with verge.