He did play most games in his first season under Emery before falling down and getting loaned out. His message is just a formality and you can see that he's still trying to have a go "the ones who believed in me...".I really hate goodbye messages from bit part players. I don’t recall him playing many games for Arsenal at all
Arsenal is the thrid club in a row where he had attitude issues and he signs for....... Marseille I hope he does well but bar PSG i'm not sure he could have chosen a worse environment to continue his career. I give it 6 months before a row of some sort happens.