Nacin: Thank you, thank you, thank you! These Trac updates are amazing, and one of my longest-standing peeves has finally been eradicated: the preview causing the Ticket Details metabox to collapse. That was a constant annoyance for me in the Theme-Trac tickets, as essentially every ticket interaction involved both a comment and a ticket details change.

Maybe I'm just easy to please, but that one change has been such a huge help.