Do you think I should just be quiet and not offer this sort of advice?
No. However my sense of this from reading discussions is that giving the same advice over and over when someone talks about SETs turns people off.
I did start a thread like you suggested. It got a few likes and no other activity. The message obviously isn't going to get out that way
What counts as "the message getting out"? What do you want or expect to happen? Do you believe people must take your advice or express belief in it for you to be successful?