It’s rare that you get a chance to work on something that you believe in, on something that you feel makes a difference.

To have been given that opportunity, to have had a chance to work with so many great people over the years, is a privilege.

So, thank you to everyone I’ve worked with, and thank you to all the people out there who use this weird, ineffable Twitter thing.

I'm just as excited to still be a part of @twitter today, as I was four years ago.

I look forward to being part of what we do next, and to see Twitter continue to grow and shape how people (and bots and brands) communicate.

Oh, and a special shout out to the other Tweeps with whom I share the same 4 year Twitterversary: @joyousx, @e_hoogendoorn, and @be_harvey!