I guess it's kind of the same thing.
A rig is a Profile where you've changed one little thing, if you change the name of a Profile called AC30 Top Boost to "Beatles AC30 Strat", it's now a rig. 
Instead of sharing rigs in the Profile section, I'll share some rigs here.
Do we need a separate "Rigs" sharing section, or should we share them in the Profile section?