"Y Combinator is an isolationist model [for lack of a better word I use isolationist, but the negative intention of the word is not intended]" This like saying

"Y Combinator is an isolationist model [for lack of a better word I use isolationist, but the negative intention of the word is not intended]" This like saying "you're fat... no offense". "This blog post isn't going to sing the praises of TechStars" It's hard not to see this as exactly that. YC gets "isolationist", TS gets "collaborative"; YC gets several sentences describing cons to their approach, one mentioning pro; TS gets several mentioning pros, one mentioning con. I like the idea of comparing and contrasting the different "accelerators", but this is clearly biased towards TS and uninformed on the YC side. Of course naturally it will be hard to find someone intimately familiar with multiple accelerators' inner workings. Perhaps external investors or journalists.