This is somewhat minor, but I'll say it anyway.
The Commands should be simplified.
What I Mean:

• The /help command is clunky, and should hold only the commands that a certain individual can use (AKA I don't need to know about the plugins!)
• /newisland can be a bit smoother, by getting rid of /newisland replace entirely, without /newisland yes/no. (Example: If they have an island, and they do the /newisland command, make it act as the /newisland replace command.)

 

As for the /help I don't see much of a problem, if you just skip the plugins at the beginning then you have the commands you're able to do. Also I'm not sure if it's possible to remove them off /help.

As for newisland I think it's necessary to have the yes/no options, it's sort of a confirmation of whether you want to do it or not, otherwise we'll have report of people accidentally restarting their islands.