Took a quick look at the wiki and have to admit that this is hilarious:
Both a zero-cost version and a purchasable “enhanced” version called LimeWire Pro were available; however, LimeWire Pro could be acquired for free through the standard LimeWire software, where users distributed it without authorization.
You could just move them over whenever someone decides to double it up. That way the person that was going to die alone is doomed to die anyway. 😂