Further ideas for QA / bugtracking
Easy service to have document format incompatabilities identified/filed
I imagine the following service for format incompatabilities: Upload a .docx/.odt file that gives you problems. Some officeshot backend attaches screenshots of how that document looks in LO/OOo/MS Office 2010 automatically. No user registration needed for that. Volunteers could help digging out the relevant pieces of the doc and create minimal test cases which would then end up being filed as "real" bugs or being assigned to existing bugs and could serve as test cases verifying the bug fix.