Even something like adding a 15 second stand still timer similar to factions tpa system? If the suggestion would require a reset to skyblock that would definitely lose my support and everyone else's I'm sure.

 

Retype command. Like on survival when you abandon a claim. That would work to stop island farming, cause its a script/macro command they use for the alts. However, they can change the script/macro to what ever. Maybe have a random confirmation, where it randomly changes to/chooses a retype or stationary wait. Changes to the plugin for a wait time can be done on the easy side, but retype and/or random confirmation will take a little time.

Just 2 more of my cents (well 25 cent)

 

TPA system is Essentials, not the skyblock plugin.
I don't think its possible with the plugin Mineverse are using, I'll have a look what plugin Mineverse is using.