OK so this is only a Perl meditation insofar as Perl powers many websites where this issue is relevant. The problem with facebook connect is not with every reasonable site offering it but that users become habituated to it and can fall into a trap at some time like this:-

The bait will be some benefit of sufficient attraction to encourage people to register on the site. The option "connect with facebook" will be a trojan. All too easy. The only way to avoid the trap for most users is to never connect with facebook as a security policy.

Or is there another way to help them?

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Re: Phishing via facebook connect
by Anonymous Monk on Sep 04, 2018 at 01:41 UTC
    Facebook Connect is trojan software because it's just sleazy spyware posing as a convenient login service. You can't and should not help facefools. Their obsessive use of one website tends to keep them off the rest of the internet (and that's a very good thing).