Okay, I think I see what you mean about your commune. Largely poly but not completely poly and not "officially" poly. And you guys don't actually use the word "poly." (Just curious, is there some kind of a French word that can be used instead of "poly?")
"I don't believe that I can give advices but each one can pick up in my experience what seems good for him/her."
Slight correction -- use "advice" instead of "advices." Advice is a particular kind of noun that doesn't have a plural form. The closest you could come is to say "words of advice."
I hope to hear more of your thoughts and experiences.