Being a developer myself, I agree with most of the things. I learnt this in a different way though. When we started RemoteInterview.io, we started as real time coding interview tool [0]. Even Though, it's really helpful for interviewer to watch candidate code in real-time, we soon realized that a number of candidates don't like to code under stress.

We then developed RemoteInterview.io Tests [1]. It's a screening platform based on coding tests where candidates solves the challenge in offline mode whenever they want. Some candidates still don't like to have time limits but I personally think it is important to have a deadline for every task because in real-world, no project can have infinite time.

[0] https://www.remoteinterview.io/features-interview [1] http://blog.remoteinterview.io/post/109864123971/screen-cand...