Fair enough points. I do think eventually something better will come along, people tend to continually evolve in most areas. However, steem has a good position for where it is, as some call it, it has "first mover" advantage. And it already has a good dedicated active user base built up.. It will be hard for a new competitor to sweep them out from their position.. BUT.. In my opinion, what is more likely is that a major competitor like Facebook or one of them may try to offer the money incentives of some sort, allowing people to donate much easier to each other somehow.. I think that's the concern personally. They already have the massive insane user base, if they would just copy steemits strengths, I think most people would take the increased censorship of a Facebook, because it's easy.. Out of laziness basically..

I'm no expert though, maybe something else entirely will happen! It's fun to be a part of and experience this new wave of innovation though!