Currently using Meteor for my startup, I foresee scalability issues down the line (which the meteor devs are currently working on) but for cranking out a MVP its a pretty nice framework.

The question about frameworks in the original poll was worded like this:

Are you using a client-side MV* framework? (Angular.js, Backbone.js, Ember.js etc) If so, which one?

So it's possible that Meteor users didn't feel they could answer. However, it was open ended, so people filled in other frameworks, like Derby.js.