[mikepurvis]

Any MacOS user who has to put up with having bash-from-2006 as the default shell has been affected by GPL2 vs GPL3.

[zeveb]

Correction: any MacOS user is affected by Apple's decision not to update bash.

[EpicEng]

...due to changes in v3 which Apple sees as incompatible with their business model. That is an effect of v3. By your logic v3 never affects anyone because there's always a human decision behind whether or not to adopt it or to integrate software which does.