Bukkit

I thought Messages in the Serversigns folder were editable?

Multi-role: Assign a variety of actions whenever a sign is clicked (even define different commands for right/left clicks)
Messages: Send messages to the player
Broadcasts: Send messages to the whole server
Player commands: Executes commands as if the player typed it in chat
Server commands: Executes commands as if it was executed from the server console

I changed it, saved, reloaded the server (didn't work so I tried to turn off the server and then back on but nope)

Is it editable?
And would be something great for the next update <3

Your question/problem is not very clear, please clarify.

If you want to edit a sign manually, you must before stop your server and then edit files.
Because sign files are auto saved when the server is stopped