I was just wondering if guilds would use a mod that monitored what buffs everyone had at a given time and their hp/mana levels if it existed.

The idea came to me when there was a clear gap between peoples damage at patchwerk when using similar equipment.

I use XRaidStatus for that - you can set up any number of bars, tracking numbers alive, average health, average mana, number offline, number afk, etc, all filterable by class or group.

Edit: also, it does buff tracking, although i only recently set that up and haven't run a raid with it yet (as a rogue, i don't often have to worry about buffs, unless i'm raidleading, so i didn't bother setting it up until tonight).

I think what he's talking about is something that would record a history of that information so you could go back through the fight and see the levels/buffs at any stage

not a bad extension there Lure, however my inital thoughts are to have a few columns

Name <HP>/<MP if req> Buffs(consumables too)

and this would be for the entire raid.