Well, I think I'll drop this here, to avoid this becoming too much like ianal-lawyers-l. :) I don't think any MW devs are interested in suing anyone who isn't grossly abusing the GPL, if any of us would be inclined to bother even then (I doubt it).
Agreed. Asking nicely for a copy of the source code of anything you are interested in doesn't involve as many lawyers, which makes it far preferable in my book.