I feel "suggestivism" is just giving a name to the true nature of art.
All of my best works have come straight out of the pen to the paper, no thought involved, no logic, nonsensical, just flow. I have done many many drawings that you would look at and just go, "what the.."
I always loved the critique part of art class where I would go up in front of the room and everyone would try to pin down my art and tell me what they thought it meant, it was an art form in and of itself because in reality I just drew with no meaning and people would attach their own ideals and philosophies to my art, it was great!
I'm glad more people are realizing this though, letting the art flow through you with no agenda of your own is the most rewarding aspect of art in my opinion.
'Little spider weaves a wispy web, stumblin' through the woods it catches to my head. She crawls behind my ear and whispers secrets. Dragonfly whiz by and sings now teach it.'