When it's quiet, is actually a better time to post. Less competition.
Steemit has something going for it that none of the other places has: a lack of a group of busy bodies actively seeking to censor content. Even if a post is downvoted to dust, the post is still on the blockchain and can still be seen. I see the censorship brigades on Google+, Facebook and Twitter. Steemit also has permanence: as long as there are nodes providing access to the blockchain, my content is alive and well. Steemit, Busy.org, and a few other sites provide an interface to the blockchain. An open interface is a big deal.
Steemit has also forced me to learn new skills that I didn't need on the aforementioned mainstream sites. I'm learning Markdown. I'm using a new text editor, StackEdit, in order to preview my Markdown posts and save a copy. I'm learning how to insert pictures and center them in my posts with Markdown.
Steemit is also informing me of an entire ecosystem of development built on the Steem blockchain. The main point of Steemit then, is that the value of the blockchain comes from the development of applications on top of it.
So, even while prices are down, I'm still posting. I like to write and I like posting here. Writing isn't as much fun unless I share it. So I share it here, and post links to my posts in the aforementioned mainstream sites. Each cross-post of my articles on Steemit will direct attention to the Steemit posts that I make. Over time, with people like me cross-linking our posts, more and more people will come to Steemit (or busy.org). With each post, I'm planting seeds in the minds of others when they see the $ next to my post.
It's only a matter of time.