Avoid this company. Clearly they don't follow tactful practices in their hiring process. I hadn't seen the other two harsh interview stories here before or I probably would not have even bothered. But I didn't research glass door before responding, so shame on me. Here's my "third-strike" tale of what a waste of time and energy this company is in terms of interviewing...
Was asked via email by the company owner (not a creative or art director) to do a working interview. I was asked to spend only 2 hours making the front of a postcard mailer for one of their clients better, because they felt that the one they had was terrible. There were no details on what the client's direction or goals might be and I was only given a poorly designed pdf to work with. I spent the alotted 2 hour time and came up with something really nice, in spite of being locked out of the fonts and source assets with a poorly formatted acrobat file. I sent him the redo and... no response. A week later I sent another email to confirm that he had gotten my response and 2-hour trial sample and... you guessed it, still no response.
It's Christmas time, I have three kids and I need a job. I don't have time for this. I can handle it just fine if he didn't like my sample or had some other reason to move forward without me, but no response at all? Walk on by, you'll be wasting your time.