I have found that out. I felt bad about a couple shady things done to me but I got over it. I'm sure they don't think they are scamming and some of the courses sound kosher. When I first joined Medium I took Medium Mastery offered by Tom Kueglar. It's still on my desktop since last June and I refer back to it a lot. I'm glad I took his course. I learned some of the ropes but still feel like a newbie. I go back and realize I didn't listen very well. Then I learn something new.