The question isn't whether you'd post the story, but whether you'd trust and believe your friend. The question of whether to post, or not depends on how much you value your fellows concern to know what's going on.
A hasty call in the heat of "battle" so to speak...no I wouldn't believe him completely.
Certainly not enough to broadcast it to the world.
Well put, imho.
If I trusted my friend, I'd share it widely and feel I'd be negligent if I didn't.
Each person is responsible for prayerfully pondering all input and seeking God's confirmation on what's true as well as therefore, what.