Comment by jlarocco

I think Facebook's huge head start was a big part of Google+ bombing, but I think there were other issues, too.

First of all, I think it really bothered a lot of people how they retroactively converted a bunch of pre-existing accounts into social networking accounts. Especially for things like Gmail, I don't think people had any idea they were signing up for a social network.

I also think tying together a dozen disparate sites and services under a single account login bothered people. Nobody really wants their search results, chats, video watching, picture sharing, and email all smashed together into a big social network. Especially not when it's unclear how those things are related and how clicking "Like" or "Share" on one site will show up on the others.

On the other hand, just being logged into Facebook doesn't implicitly log you into a dozen other sites and it's pretty clear that if I click a "Like" button, I'm liking it on Facebook.