While that side did look a bit of a scam, it was legal ( I think someone mentioned somewhere that he did have a link hidden somewhere that mentioned that the source could would be available if contacted – which is all you have to do to be LGPL compliant in this case )
At some stage I think you’ll see more competing products like this using the same source code ( eg Blender customised for beginners, or for a certain software package, that people may charge for – similar to Linux Distros ).