Well...
Galatians 1:8
But even if we or an angel from heaven should preach to you a gospel contrary to and different from that which we preached to you, let him be accursed.
Nothing that was received at Fatima contradicts anything in the Holy Scripture.
Being deceived by a fallen angel, as you claim is the case with those who believe that Fatima is genuine?
Or, getting something like Fatima wrong and calling what turns out to be a true divine intervention an act of Satan on a public forum, while warning people away from it and its intended meaning?
I'm not arguing about whether or not Fatima is real, but using it as an example while wondering what sort of hypothetical penalty you think would result for each of those two possibilities.
Which brings me to another rhetorical question in the same vein:
What happens if to you personally, Elsie, considering all you've posted about it, if you have gotten Mary's status wrong and she truly is the Queen of Heaven and is working now to prepare us all for her Son's return?