> Although we built Fleets to address some of the anxieties that hold people back from Tweeting, Fleets are mostly used by people who are already Tweeting...

That makes sense in retrospect. I have a twitter account but have only used it a handful of times when it was the only way to complain to a company (!). I read tweets only when someone links to them.

Perhaps something even more lightweight would have attracted me but I'd never even heard of this product.

It's a difficult problem to publicize an addition to a service to those non-users who aren't actively looking for features.