It's good, but you end up getting followed by more pirates than actual people who will buy your stuff. I give out a lot of BS information on twitter to see where it ends up and sure enough it's always on the pirate forums. Followers don't equal money. Especially in porn. I mean, if you're a Kardashian, and get paid 10 cents a tweet, then ya.
I laugh at how silly these these girls are giving away the information on a scene that has yet to be released, and there is already a request thread for it before it's even out.
Take Jayla Starr for example. Beautiful girl, quite smart, tons of followers. I think around 40k. Ask her if she has 40k members to her paysite. But I can show you over 300 places where each of her scenes have over 40k downloads
Twitter is an easy way to shoot yourself in the foot. So, if you keep that in mind, talk erroneously, and you will get a follower base without giving away the things you need to be shelved for a time. And, answer like a politician to specific questions. That's twitter 101.
Duke