Code can be redistributed, regardless of whether clever redistribution hacks are involved, support from the people who created the plugin cannot.

No need for anyone to stress out - people who pay for themes are a valuable minority, exposing those potential customers to an unsupported version of the plugin is GOOD for the plugin creators. Carl might not be eager to buy a pint for the Your Inspiration Themes guys, but I very much doubt that this situation keeps him awake at night.

This comment was written on a ferry in the middle of the sea between Ireland and Scotland - how fucking cool is that!