There should be an incognito command if possible for staff and trial mods to 'hide' their Trial Mod or Staff Tag including the Chat Tags as well. If one of the staff member tends to go incognito, it should give the donation rank if donated for a certain one. There is a lot of ups and downs to this but if Staff tends to abuse this than it can be punishable. Really useful for some situations but it should echo the incognito for any staff online and the logs as well.
This has already been implemented into the gamemode however it is not allowed for Trial mods for certain reasons which I do not know.