Trust me, Facebook doesn't care. Having me giving your credentials and then logging in on my behalf will get me banned.
"However, Facebook is not the only one network that we target to."
No, but here's a question: of your target audience what percentage have a Facebook account?
Not that it matters. Most social sites (or the smart ones, at least) have a policy against automation. LinkedIn stopped NotchUp using the same rationale, for example.
Can you be forthright? Let's say I sign up to your site and give you my Facebook and LinkedIn credentials. What, exactly, are you going to do with that information?
If I delete my account will all of my information on your servers be deleted? Will you ever send me notifications -- whether via email, IM, InMail, Facebook message, or whatever else -- that contain advertisements targeted based on the data I handed over to you?
It's very imporant to note, that when using Atomkeep - it just gives the same functionality as browser-based "Autofill", but on the Web. There is no any fetching of friends data, photos, e-mails, messages, whatever else. Just the data you have with Atomkeep, and the data you want to change/update.
No, we are not sending any kind notifications at this point of time, and we don't plan to include advertisement anyway.
What we actually planning, are new services that you can benefit from, basing on ability to manipulate the data.
In fact, you don't have to give us any credentials to other networks to use our site.
Thanks!
However, Facebook is not the only one network that we target to.
Thanks.