Firstly, I apologize in advance if this post in not suitable for MO, but in my personal circumstances, I have no other place where I could post it.
Suppose one is fairly convinced that they have found a short proof of some famous theorem. But the problem is, this individual has no connections to any specialist of the area (due to geographical location or otherwise), such that they have no one to discuss their wok with. This lack of professional connections would also mean that they are going to find it difficult to find endorsements to publish on arxiv, hence their only option would be a place like vixra, where one should really never post their work. And if they try to find some specialist of the field, they are most certainly going to be dismissed as a ''crank'', which may not necessarily be so.
So, considering the really difficult circumstances that this young aspiring and passionate mathematician is in, what is the best way for them to ask for comments on MathOverflow, bearing in mind that MO has a policy against such posts?
Maybe the individual in question could be given the option to post their proposed proof using a polite tone like ``the following proof must be certainly wrong, but where is the mistake?'' And as soon as any mistake is found, have their account banned definitely or indefinitely? Just a thought.