Why not asking about updates of search process I have a campus visit two weeks ago. The search committee chair told me that if I got a positive feedback, they will contact me, otherwise they will contact me after three weeks and half ( I assumed that I may be the second choice). I read many answers that suggest not contacting the search committee about their decision, but I still don’t know why most answers recommend not contacting the committee. Actually, I will defend my thesis sooner and I am worried and over thinking too much so I want to know a decision. So, I want to email the search committee chair about decision or any updates, just to stop thinking, is it ok to do so or it will hurt my application?
I think there are only two cases where you should follow-up with the search committee:


The time by which they said they would get back to you has passed. 
You have another opportunity that requires a time-sensitive response. 


A while ago I read some good advice (somewhere on this site) about how to deal with the waiting period after a tenure-track interview: 


  As soon as you're done with the interview &amp; visit, thank everyone who you've met, and then immediately move on with your life under the assumption that you did not get the job, i.e., search for the next opportunities, etc.