Aura stacks or nah?

[Sykko]

I been looking around and I cant seem to find the answer.
Does auras like butchers life steal stack if you make more butchers or other does other auras stack?

[Emdecay]

I am not sure to be honest but I believe differently named auras stack others do not.

In case of Butcher: his and the aura from Head Chef both affect them, because they are different auras. So if you have them both you get the benefit from both auras.

[Anbu]

they dont stack but you can up one butcher to head chef and place then a new butcher and you got both auaras

[ScrubCompactor]

if you were to take two Safety Moles together, their auras will not stack