Hi,
There was a situation in my company when a new member was added to two workspace's boards in total (both using the share button and his email) and some time later we've noticed that he is a workspace admin. Surely noone made him an admin on purpose and we are wondering how could he did it himself?
Maybe he requested to be an admin and someone accidentally accepted (but all the legit admins don't recall it). It can also be connected to the fact that meanwhile someone (maybe also him, he's a real troublemaker) started a premium trial on this workspace.
Can you help us solve the riddle and prevent similar situations in the future? 