Understanding the people you tweet with is, of course, a great way to determine if offsite connections are going to be worth it. After all, offsite connections that are hundreds of miles away are not likely to be easy, cheap, or even possible.
So you know what's it like. You post a selfie taken at the ballgame. Except you told your boss that you were home sick, with the flu. You were supposed to be with your significant other. But, oops, you checked into Foursquare. With your friend. You know, the one with benefits.
You can also work some magic in person. Show up to any signings or discussions, even if you just drink coffee and don't participate. Ask for the book at your local library or bookstore. Read the paper version in public (train stations are really great for that sort of thing). And you can also talk to your friends, or email them about the work.
On much of social media, when you are an independent author, you lead two lives. There is your personal life where you have friends and family, but there is also your professional or semi-professional life. Even if you never sell (or never want to) a syllable of your work, if you want to improve, you're at least in the realm of semi-professional.
For bored and isolated people, social media can often serve as a godsend. Yet with worries such as this, spouses might do well to be cautious. Not necessary jealous, but at least to be wondering a bit, if someone spends seemingly forever online.