Any user with the tweakin.bettersignedit.use permission can edit the signs by default in protected areas with WorldGuard which means that if you forget this when creating a zone, they can edit them and lose the information (I suggest that this disabled by default)
Now, this protection does not work in areas of the GriefPrevention plugin (there you can always edit the posters of other users)
the second thing is that users who have essential permission to write with colors on the signs lose that color when they use better-signs-edit leaving all text by default in black and prohibiting colored writing
I have 2 issues with this part of the plugin
Any user with the tweakin.bettersignedit.use permission can edit the signs by default in protected areas with WorldGuard which means that if you forget this when creating a zone, they can edit them and lose the information (I suggest that this disabled by default)
Now, this protection does not work in areas of the GriefPrevention plugin (there you can always edit the posters of other users)
the second thing is that users who have essential permission to write with colors on the signs lose that color when they use better-signs-edit leaving all text by default in black and prohibiting colored writing