Muh Okay, I'm writing this after my OGHN test and yes, I do agree with you that we don't need "partylootid" as autolootid is confirmed to work in-conjunction with the partyloot system. But my gripe with this system is that the playerbase is expected to, at some point, research the instance loot table, build a comprehensive nolootid or autolootid since nothing drops on the floor.
Other test notes
The bugged out part is that setting partyloot to 0 and partyloot to 100 are literally the same.
However, setting the partyloot to a decimal such as partyloot 0.10 returns the expected behavior. I'm soloing.
Maybe you're responding to someone else with your floor clutter comment. Unsure.
Would be interesting to hear from new players and how their experience is with this system.