Exactly like with closed source then, for example take a look at all those other closed source trackers that nowadays are abandoned (Aodix, Buzz, Octamed, MadTracker, Skale, FastTracker etc). If they where released under open source before they where abandoned they would have maybe lived on… but now most of them are dead forever as long as the developers doesn’t choose to do anything radical. Well, to be honest, it time to break this silly myth, together with the myth that you can not earn money on open source software…
dssi-vsti released a new update as soon as a month ago with native VST-compatible headers, which makes it possible to distribute it without the official VST SDK and under a pure GPL-license. So the best thing would be if renoise gets dssi-support in a later version (which sounds like something that maybe will come if you read this thread). Then you maybe can run Windows VSTi:s directly from Renoise for Linux just like any other plugin 