If I have some free time (I have my own unrelated project to run and maintain) I might think about making some stuff for OA. I have a question though. I read the wiki about the not-todo and I'm still a bit stuck on one particular part. Is NO-Copyright content compatible? I am unfortunately not so familiar with the gplv2 license. Any content that I would release would have to be as Public-domain/No-copyright.
I prefer to release under this so that I can still use anything that I create for other projects without having to worry about licensing issues.
You can use your own stuff however you like, regardless of the license, if you made your stuff from scratch(e.g. you have not used stuff from anyone else to create your own). The license only relates to other people using your stuff. This way, e.g., ID Software can give the quake 3 engine to the community under a GPL2 license, while still being able to license it differently to anyone else who wants to use it in their own proprietary project, since the quake 3 engine was created by ID.
If you make something, you can use it under whatever terms you wish. However, if you provide it under a license to other people, those people need to respect the license.