[BWStearns]

I just finished up a job search and I ran into the same thing. I think everyone does. Hiring is a hard process so it's not terribly surprising that not many places do it right (I do not claim to have the answer on how to do it right but non-responsiveness is certainly something to avoid).

One reason that I suspect for the silence isn't that they're actively snubbing you or ignoring you but that the person doing the hiring might be doing development as well and if they need to spend an hour interviewing or an hour coding a feature they'd rather work on the feature. I feel like this is particularly likely at startups since they don't have excess manpower. Even in larger companies it might be that they want to move forward but it just keeps getting deprioritized from above and they don't want to tell you to move on and lose you since they still hold on to the delusion that they'll successfully reprioritize it.

I wouldn't retaliate (though I understand the desire for vengeance... er justice :), though as RogerL suggested Glassdoor might be a good route. If it starts impacting their applicant pipeline then they'll start being more responsive.