Interesting post Steve. I've gambled a little with spare change over the years but have always been cautious not to get drawn in.
My granddad had some success on the stock market many years ago. I say success, he turned a few pence into a few pounds as a hobby - he was in it for the long term though.
Many people seem to be into these things for a quick win these days. I like Steemit because the people and content interest me; it (like this post) will make me go away and maybe study something else or ask myself questions.
I think it really is a form of gambling. The successful people tend to do their research, but in both there can be manipulation behind the scenes. Gambling just isn't my thing