I get weird direct messages from people. They make no sense and the links are bad. The I get a handful of direct responses that make no sense from people claiming I been sending them bad or weird links.
Smells like phishing to me.
So far: not impressed with the Twitter.
If you've gotten any direct contacts from "teacherninja" in the last 24 hours or so you can ignore them--wasn't me. I'd apologize to folks on Twitter, but I'm at school now and it's blocked in our district (and my cell doesn't get service in our fortress-like building).
Someone convince me that this thing is worth it, because so far I'm not getting it.