What makes me nervous about singing into a site through Facebook is I don't know what kind of permissions I'm giving to the site regarding my FB account.
Will it always do that? Are there any implicit allowances? Will there be in the future? For what's true now, I could look it up. But I'd rather not. For what will be in the future, I have no idea. The simplest thing for me to do is use my Facebook account for Facebook only.
Any information you put on Facebook is susceptible to being used in ways you don't know of or have not authorize for. All information on the internet is like this for that matter. At least currently with Facebook Connect sites FB displays an authorize display laying out the information accessible.
Yes, exactly. That is the mental model I have for Facebook: only share what I'm comfortable sharing with the world. It's a simple mental model, and I like keeping it that way. Dealing with "Do you want to allow...?" dialog boxes breaks this mental model, and doing anything with another webpage gets a big "NO" from it.
I'm conservative about what I put on FB for this very reason. I consider logging into another site with my FB account part of "what I put on FB."
What are you talking about? It doesn't matter why they're doing it today. It matters that they're doing it. Even if you're naive enough to buy into "don't do evil", surely you realize that it wont always be that way.
