Honestly some insiders/CM's keep a low profile. They are on this Forum for the pleasure of conversing about WDW. They may not want to be identified and I don't think it's mine or anyone else's place to point them out. Unless they choose to come forward on their own. The forum should be pleased to have CM's here but it seems ( like in the parks) CM's are not always appreciated. Just my 2 cents
Not to mention Disney probably monitors this forum and is obsessive about employees discussing certain company business on social media and discussion boards.