I've found a ton of providers on the east coast that use it. Obviously you would have to be careful. You can also set up your account to approve all followers which would help with security issues.
I used to use twitter to announce specials for my followers - but didn't think it was helpful (although this was about 2 years ago). Perhaps it's something to think about putting back together? Are gents actually interested in using it if I revved it back up?