The timer may be nice, maybe more annoying for some servers. Couldn’t say XD Would it not be better to have a warning message, similar to building outside claims, but rather for building in claims that aren’t yours (or trusted in)? I suspect this may conflict a bit with the way it’s setup currently though.
And I’m running your most recent GP version. Looks like it worked fine, short of two claims that were converted to admin, which I could just transfer back easily enough. On the note of admin claims, I quite liked the way BC had visualized them with emerald blocks instead, was a nice visual delimiter from normal claims, would be nice to see that re-implemented.
@GeekyServers I hafta agree, although a warning, mods may see that as an advertisement, which was recently prohibited in the new rules, afaik.