"If you distribute modified code, or offer it as a networked service, you must make the source available under the same terms. This is not a restriction on shar

"If you distribute modified code, or offer it as a networked service, you must make the source available under the same terms. This is not a restriction on sharing. It is a condition placed on sharing: if you share, you must share in kind." -- This is, on any plain reading, a restriction on sharing. "You can share only under these conditions" is plainly more restrictive than "sure do whatever you want". You can argue that it's a restriction that ultimately leads to more sharing overall. But it is a restriction on sharing in any given case of sharing nevertheless.