Kinda of automatic code (or project) checker plugged into a tool to do automatic code (or project) checks ? That's awesome !
With my team, we just write Git pre-hook scripts, why you don't do that too ? There is no interest to push incomplete things on the server no ?
Danger allows us to add code review specific checks, for example:
We use hooks heavily in development (and even built our own hook manager—Lefthook), mostly for running linters and tests, i.e. something that is required to pass. We do not use Danger for that (although it's possible), we use it as a code review little helper, not guard)
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.