Looks pretty cool so far.
Please make sure to add a section to contain the demo platform as well... c64, amiga etc..
It's an interesting idea, basically you would have to get all of the release sites to export the data in this format.
Check out the CSDb (commodore scene db) at http://noname.c64.org/csdb/ if you haven't seen it yet.
There is still a lot of work to do, and changes will come to reduce tag overhead.
Having databases to export would be essential for the project.
I did not know this database, even if I may have seen it someday. It's a great database :)