Ich denke das trifft die Situation des Webentwicklers doch mehr. Schliesslich entwickelt ein Webentwickler meistens für andere Firmen oder Organisationen, also stimmt das wohl doch das man den Sourcecode der Homepage dann releasen müsste... Oder wenn man z. B. Software für mehrere Sites schreibt, z. b. ein Forensystem oder einen Webshop.

Ausschnitt aus obigen GPL-FAQ:
Is making and using multiple copies within one organization or company "distribution"?
No, in that case the organization is just making the copies for itself. As a consequence, a company or other organization can develop a modified version and install that version through its own facilities, without giving the staff permission to release that modified version to outsiders.

However, when the organization transfers copies to other organizations or individuals, that is distribution. In particular, providing copies to contractors for use off-site is distribution.