A lot GSP's opponents have said he felt greasy during their fights.
GSP has 23 MMA professional fights: 17 in the UFC.
Name at least 5 fighters who said that about St-Pierre - with arguments (quotes, interviews etc).
You have BJ and Mayhem already. You only need 3 more...
This is just Mayhem doing what the UFC signed him for, generating interest.
Mayhem is always looking to generate interest around him.
It's a good recipe to get the world's attention on yourself.
I only find it strange to come out today and talk about a fight that took place 6 years ago.