Many people and guilds use iLvl bracket rankings to judge and improve their DPS/HPS. However, I have noticed that a lot of people with certain tabards and shirts equipped can lower their ilvl by a very large margin, totally skewing the data. For example, and ilvl 811 may grab rank 1 DPS for the 829 ilvl bracket even though he has all 860-870 gear and an 880 artifact weapon. But he has a ilvl 40 tabard or an ilvl 1 shirt that is skewing his ilvl.
Tabards and shirts should not be included in the equation.
Hmmm yeah possible. It might be a bug with the item level in the new COMBATANT_INFO event. The first log you linked the person’s ilvl is legitimately low, since he’s wearing an ilvl 60 cloak, but the others I only see shirts at low ilvl.
It’s weirder than that. Not sure what is going on without the raw log file. The guy reported as 808 has 858 in an earlier boss, and he still has the shirt on.