Hey guys,
1 year ago I made a proxy that I used between XLD and vgmdb to allow them to talk to each other successfully:
https://github.com/sharpobject/xld_vgmdb_cddb
More recently, I fixed the underlying issue libcddb, the library used by XLD:
https://github.com/sharpobject/libcddb. I have tried to get this merged into upstream libcddb but the project seems abandoned.
XLD is not abandoned, and the developer is very helpful, even when I ask stupid questions. Soon there should be an XLD release that incorporates this fix. So at that point maybe everyone will be able to download the new XLD and use vgmdb and I can avoid running a public proxy.