It's funny, I was thinking about that comment this morning and was going to suggest that you post it as an article.
I used the hashtag #OriginalSteemContent this morning on my post and I'm going to add it to all my original posts.
One thing I will say about crossposting though, is that if the Steemit post ends up being more popular than the original,. then that's a good thing. Isn't it?
I posted a video tutorial this morning and I'm hosting the video on Youtube as unlisted, so hopefully it gets lots of views here and hardly any on Youtube, thus giving a good SEO rank for that video and Steemit as a whole.
Crossposting doesn't harm Facebook, often the FB post will be above or just below the OP.
CG
#OSC ... despite my long winded post, I prefer brevity. :)