Would be nice to be able to set a "Reason" after the amount of time of a /Mute.
/emute PlayeName 5min Spamming.

I second this. And reasons for jails too. Sometimes you jail someone and even you forget why. Though these reasons would have to appear in /seen and /whois which I suppose is a lot of work :/

This is implemented by #1557 - I'll close this when merged.

This feature is now available in builds 711 and above.