Correct, but it would be foolish not to warn people BEFORE they peek around the code. GPL (and by extension I assume AGPL) states that even translating the work to a new language still constitutes as copying and therefore the resulting code must be GPL'd.

All projects like this prominently include the license file in the root directory of their code repository. If you don’t read that, you only have yourself to blame. If you have read it but still don’t understand how the license works, don’t touch it or ask a lawyer to help.