Those who I know who engage in poly have no interest in pushing their views on others and hold the belief that the way they are doing things seem to be working for them. (And from time to time they change their minds and drop out of the poly community and so its hard to say how often that happens to people). Of the people I know; its a learn-by-trial method of being. Also being aware that some people are better at life (and interactions) than others will help you decide whether to stay or go in a relationship.
As a model; I like the model of "X works for some people but does not work for others". to keep in my toolbox of ideas for whenever someone suggests something that I think works for them but will not work for me; or before I suggest something that works for me but might not work for them. (also known as "Your mileage may vary").
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.