Creepy to have someone tweet me when I didn't give you my twitter. Creepier when a mistake is made. Might want to convert mails to twitters for inside analytics or spotting influential users though, but dislike providing extra services with mail addresses of my users. Creepy.
You bring up a good point. I don't think our service is right for every business but there a certain businesses that it can work for. I like the analytics idea.
