I think that the comparison to Myspace is a bit too much. Steemit's user-base is growing too much for that to be the case. Besides, I don't think that any of the alternatives that you've listed has shown enough growth to be able to compete with Steemit yet.
There are still many things that Steemit could still improve on, but that's another discussion altogether.
I do appreciate the write-up of all Steemit alternatives, bookmarking for sure!
Yes, it is provocative for sure. Steemit is still at an early stage with way more potential upwards compared to myspace when it died. It is more a long term comparison. What if other projects which start now will slowly overtake steemit in 2 years? Who knows. Time will tell. But I want to be ready in case it happens :p
It's not smart anyway to put all of your eggs in one basket, so to speak. You can always use those other platforms to cross-post, so you're building an audience at multiple platforms.
On the contrary, it is actually smart to place your eggs in one basket. All you have to do is take proper care of that one basket. If you start chasing three rats, how many do you think you'll end up catching?
I also agree with you that there are many ways in which steemit can be improved. As a matter of fact, i wrote an article on that very topic of recent. I couldn't get enough attention though, an irony of sorts because this is one of the things such posts are meant to address...
https://steemit.com/steemit/@seesladen/3-ways-steemit-can-and-should-be-improved
"On the contrary, it is actually smart to place your eggs in one basket."
Good insight. That must be why every financial expert in the world warns against diversification. Oh wait... they don't.
Those new users will soon leave once they find that their posts are not even making 2 cents. the trending page is "owned" by whales, new users barely have a chance to enter this area. I have been here half a year, and consider leaving each time I log on.