I don't know of any of my fellow hillwalkers who are on Steemit - and believe me, that's not for lack of trying! I've frequently posted my Steemit posts on the Meetup event page and on Facebook, and I've had great comments from my friends on these posts. But... no actual sign-ups (as far as I know). I had a similarly blank response when I became an early adopter of Ethereum and told all my friends and family they should sign up!
One thing that interests me about the mountains I climb is that each group in a specific area often has a particular rock characteristic. Many of the Glencoe hills have those reddish coloured rocks, and that might be the reason that some of them are named Stob Dearg, which means the Red Peak.