The standard rule is that if you give someone binaries of the GPLed program, you must also give them the source (or make it available, or maybe for a reasonable

The standard rule is that if you give someone binaries of the GPLed program, you must also give them the source (or make it available, or maybe for a reasonable fee, etc etc). You don't have to distribute the source to anyone else who asks - so I think you more or less have it right. If you buy some GPLed product, you are entitled to the source code in some fashion, and once you receive it you may pass it on to anyone else you want under the same terms. And yes, I would think that if you make it publically available on a blog and I download it then you have distributed it to me and thus you have to comply with giving me the source as well. IANAL, obviously. There is of course subtlety around whether the theme in question is actually GPLed, which I think has been adequately covered by others.