He's definately come out of his shell since he first started posting.
Not surprising given all the shit he has had to put up with online over the last 20 years or so.
I always look out for his tweets.
He tweeted the other day that he regretted not interacting with the fans more. It's quite mellow at the moment but he's only got 5000 or so followers. Things can get out of hand quite quickly on twitter - Brent Spiner has had a few minor spats recently with a couple of needy idiots on there.