Asciinema: Record and share your terminal sessions, the simple way
There is a discussion on Hacker News, but feel free to comment here as well.
The ability to pause anytime and highlight/copy text is huge! I would have loved to have tutorials like that when I was taking CS classes and trying to learn all the cli tools.
Why on earth would you want to share your terminal sessions?
Paired programming, mentor/mentee, auditing, tutorials, etc.
Even tmux has the ability to share a terminal session.
Theres better alternatives, like screen sharing.