Barlev: R’ Shlomo Aviner reportedly answers hundreds of text message shailas a day, and also answers email shailas (through this assistant). I assume most of the texters are from Israel, since he’s an Israeli rabbi.
“I wonder how much meaningful information and detail can be provided in a 140 character message that a Rov would feel comfortable answering. “
Rav Aviner publishes his text message responsa. Many have even been translated into English by his students. You can go online and learn his Torah-by-text message and see for yourself.