It doesn't even have to include any items that you can't find in the shops (vicious stuff, subdungeon rewards) - just the stuff people are able to easily scumm up right now with a tinker/transmuter. Heck, it's infinitely easier to veto 7 things by scumming with a transmuter than do 7 challenges to veto the rewards is! You can haul 3-4 out of venture cave at once! It's easier to rig up a perfect pool than to veto/locker just 1 thing! And a whole bunch of stuff is only possible to veto in a time-efficent fashion by scumming for them (elites, basics, map quest items). Who'll ever bring a 50 gp costing Orb of Zot out of a dungeon on a whim so he can veto it? Or Yendor? Just remove the need to scumm for people who don't want to do it, for a week/month and see how it works out! Please! It can't be that much work.
It's just that the "perfect run scumm happy crowd" are having a field day with the whole situation, and people who are the opposite of that but still want to check weird combo's out and have fun on the runs are forced into scumming... And if you really resoultely refuse to scum - low range of items used /vetoed on a regular basis for you

(And you get accused of victim mentality to add insult to injury).