I was able to meet a guy I contacted on Twitter during my trip in BKK this August.
He has also an OF but has posted only few videos in there and doesn't see it as a source of income. We exchanged line accounts and decided a day and hour to meet. spent a few hours together. He didn't ask film and I'm sure if I wanted to I could have filmed him. I just don't like holding a cellphone while doing it.
I texted around 8-9 guys on Twitter 1.5 weeks before heading to BKK. A few didn't respond at all, around 2-3 responded first but then stopped when I sent my pics, 2-3 others responded with their pics and were older than I imagined and I wasn't much into their face.
It's still the first time I meet someone by first talking with him on Twitter. I actually have had sex with two guys that are now quite popular on OF in BKK, but that was around 4 years ago. I'm sure now they even wouldn't reply to me or if they agreed to meet, they would ask to film and publish it online.
I still don't think it's a substitute for Grindr and Hornet. Even the guy I met, I saw him later on Grindr, so we probably would still end up meeting even I had not texted him on Twitter.