I had never heard about stigmeric optimization, but I have read about pheromones before.

I believe an optimization will take place, but more in form of a neuronal structure. You don't need to introduce 'virtual pheromones', since human brains already have these regulators, individually.
Communities will act like neuronal clusters, instead.

Also you have a typo 'are the like attractors' appers wrong (?).

Well researched post.
I like it.