I've participated in the Bitcoin space since it was $100. No I am not rich because I wanted to learn the technology not just invest in it (big mistakes all around). However I agree that steem gives people to invest in the space ... this time with brain equity not just with dollars. While I think some people have posted NSFW videos, I believe that posts talking about personal experiences (@sweetsssj) have been most beneficial.
Personally while I might repost a video from youtube (not my own content), I try to related it to my own personal experience or to draw people's' attention to it if I feel it needs to be repeated. My recent post on How the USA is killing the people of the Marshall Island is an example of that.