When they wanted to convince you to come in and talk to them, they could be aggressive and relentless. The processes was very unstructured. There was not any processes. The hiring managers didn't know what they were looking for. They didn't have any plan on what the position would do. They had no answers for any of my questions. After spending $ to drive up and park my car and meet with them, they went silence. I didn't get an answer back about my candidacy even after pinging them. So, I suppose I am out. A little courtesy to tell your candidate what is happening is a good idea. It remains to be seen if Twitter will be as successful as Google or Facebook. But judging at the hiring practice, it is way worse.