I personally believe it is because Steem(it) has a lot of problems. There are very serious flaws in the system and abuse for financial gain is rampant. Many people are using tons of bots to upvote all their own content for example.
And on the Trending page, not the most quality posts make it, but rather people vote based on what they think will make them the most profit. Basically everybody piles onto the biggest pile of money they see.

As a new Steemian it's very hard to get through (as I'm sure you know!) and get anywhere if you don't join in on the crazy abuse things. These days you pretty much need to use votingbots if you want anybody to see your post.

Couple that with the fact that many people on this platform never invested, but did sign up to take money out. That means the tokens get dumped, lowering the price. The only way to reverse this is if more people Power Up, and less people sell their SBD. I think the bigger Steemit grows though, the more people will be cashing out...

Since you're a new Steemian like me, I'll give you a follow! Perhaps you'd like to follow me back, and us smaller fish can support eachother on here!