steemcoin moves up slowly

I monitor the number of posting a very good friend, but why its value dropped dramatically?
as an example of a friend's post is so interesting that:
https://steemit.com/promo-steem/@munawir91/jangan-pelit-vote-or-or-do-not-stingy-vote-2017915t5333895z
this post is so out of the box, that it's own steemit.but at the same time steem value down again, and yesterday I ever post the problem of steam value dropped dramatically.
Bitcoin 3509/$, steem 1.03/$......again fell,I lift the title of the post,today steam is showing good results in the market market which is rising to 1.15 / $, it is good to boost post value and hopefully steem value goes up faster.