I like the idea as well, when it comes to security, it is something that we should prioritised. But, can I ask something? Is it possible to capture the user who is trying to access your account (when there is a failed log-in attempt) by using the front camera of the device if possible? and the image captured will be sent directly to your email address that is associated in in your account. Some security app supports this feature and I don't know if SMF or any website supports this feature but this would be somehow a cool one. But will be useless if the device's camera is covered.

As far as I know only applications are capable of this kind of feature so it can be added as security feature once there is a official app for Bitcointalk  but still a bad idea since application softwares are reversedengineer-able or can be modified to use for phishing.