Right now, plot signs generated by /plot sign build cannot be easily rotated.

This should be fixed so that whenever the build command is ran, the sign is facing the player. This way the player can just move themselves to change it, and it has a better chance of pointing the right direction the first time.

Okay, that was a lie, it's now fixed for real in 9c0cf40

The solution was a little more complicated (and annoying) than just adjusting the yaw of the Location of the sign...

Sorry i forgot to make a report for this :)

I'm going to sneak this one into v2.3.0

This issue is now fixed in the dev branch (commit 8f2b991)