This is like saying The Atlantic Monthly is just a bunch of writers wearing the same masthead. It's a critique you could have leveled against any magazine ever started anywhere.
The current, most popular post on the svbtle network is Dave McClure, a super angel with his own Wikipedia page, hoping that he's a "late bloomer", not a "loser."
dcurtis' latest post:
I’ve been hearing rumblings which suggest that Flipboard is about to be blocked from Twitter’s API, following Instagram’s blockage last week. What is Twitter thinking?
Literally, that's the entire post.
I really like the actual frontend of svbtle blogs, and the 'ideas v. published' blogging interface seems smart, but the notion that this is some curated uber-network is absurd.