What's the difference between Facebook, and Twitter & Instagram?
Twitter, to me, is less personal. Facebook is way too much people arguing, usually unruly, while using their full name and all their personal information. Especially these days, too much of a strong opinion attitude and I'm right/ your wrong on facebook. I can't take it. I'd like to just delete my account, but I know there are some good uses for it that prevents me from totally disconnecting it.
Twitter is cool because I've got lots of examples of directly communicating with someone kind of famous or something, like a lot of musicians are on there who are very interactive, like Devin Townsend for example. To me, it just comes off as a more open environment. There's tons of the same issues with facebook, but I find it easier to ignore all that on twitter.