I partly agree with you, still it's kind of logical that lots of cryptocurrencies fans are here on steemit and many topics are poorly represented or not at all.
If you check the posts you're not going to see many "women" topics.. like clothes, makeup and that kind of stuff which are huge on blogs or youtube.
Than again, steem is still pretty young and will need to attract all kinds of posters to really go mainstream.
I'm guessing having 3 currencies (STEEM, SP and Steem dollars) is too strange or complicated for your usual internet person