For what it's worth I understand that you are the one who needs to deal with all the community yelling and you have decided Matthew is a troll.  

Ok.

But he makes good points now and again and you are censoring him.  Not allowing him to speak freely.  
He is not the enemy, the scammers and thieves are the enemy.

For what it's worth.

And let me restate that I recognize you have made your decision after, likely, dealing with hundreds of complaints.  And that cannot be any fun.