I did not see any button for reporting bugs.
I download PAF GEDCOMs because they are formated more correctly than the 5.5 option. The last few times that I have selected PAF I have gotten the non-PAF format.
I was sure that the download I did was a PAF, but the GEDCOM wasn't PAF, so I did it again making sure I selected PAF, but this one downloaded incorrectly and WinZip did not like it. This is where a redownload button would be nice.
I did it again (3rd time) and I made sure that PAF was selected. It still downloaded the non-PAF version. This use to work.
The GEDCOM header should also give an indication of which GEDCOM Format was downloaded.