And when I decide that it's OK to sign up with twitter/fb there are more things that might turn me off:
1) If the app only gathers some info from my twitter/fb account and still wants me to provide an email/password. Sorry, but I was awaiting something simple like 'click authorize in twitter and receive account'. I didn't expect that much effort and I'm closing the tab then.
2) If the app requests to 'post updates to my timeline' or something like that. I'm using twitter/FB as an authorization provider in this case and have no desire that your app will post updates for me. (Possibly in my absence)
And when I decide that it's OK to sign up with twitter/fb there are more things that might turn me off:
1) If the app only gathers some info from my twitter/fb account and still wants me to provide an email/password. Sorry, but I was awaiting something simple like 'click authorize in twitter and receive account'. I didn't expect that much effort and I'm closing the tab then.
2) If the app requests to 'post updates to my timeline' or something like that. I'm using twitter/FB as an authorization provider in this case and have no desire that your app will post updates for me. (Possibly in my absence)