The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
It might be the AA app function (or maybe similar to Tapatalk app) where the crown colour identifies admin or mods. Not sure if other groups on other forums.
Facebook provides a list of admin (or on the local society one here it does anyway if you know where to look).