I think that every dumper must be able to edit his own dumps, up to some extent off course AND with mod approval. I can add but not edit?
At least the comments, if it's not something that alters a dump only adds information, no need to post in the fixes forum, its safe to do so. Example i needed to add the information on Unreal Tournament 2003 that it has SecuRom.
comments, barcodes, ringcodes should be safe to edit.