I understand where you're coming from when you mention some of the arrogance - but I don't see it often enough that it turns me off completely. I've also been here a little over a week, and some of the trending information i've found is very useful (such as getting into ICO's, ICO news, access to other youtubers who do coin information videos).
I think that the greatest thing steemit has going for it right now is a focus. All of us are interested in the future of cryptocurrency. At the very least - that is my interest and i've been able to find great content.
I will admit that this website currently cannot replace other social media (it simply doesn't have the volume), but I wonder if in 5 years from now this could be a true competitor to reddit in a way that other websites eventually fell.