Deletion of List of FA Cup giant-killings

Comment: I'm going to buck the trend and stick my neck out. The list is notable and therefore simple keep. I concede it may well be  but giant killing does have a dictionary defition. To keep the list manageable, the list needs a criteria, which have been set. As per the previous AfD, it is possible to take  too far, see the featured list - List of important operas. I also feel that using individual sources woulnd't work, because you then leave it down to an individual journalist. If the Harrogate Advertiser called Harrogate Railway's victory over Harrogate Town a giant-killing, then we would be forced to include it. I'm open to suggestions for verifying the criteria and then putting in any upsets which match those criteria, whether sourced or not, as long as they're fact. If that's not possible, then so be it, but I feel this list is notable enough and want to make it work
Stance: keep
Cited policy: Wikipedia:No original research (WP:OR||WP:OR)

Comment: isn't "arbitrary criterion" equivalent to "|original research" really?  Why is one arbitrary criterion more or less relevant than another?  The issue here isn't whether or not the list contains shock results, that's a given, the issue is that the title of the article and the author's decision on what constitutes a "giant-killing
Stance: comment
Cited policy: Wikipedia:No original research (WP:OR)