Not being able to trade or hand in imperials is too restrictive, how about making it so you can't log in or switch to your other tagged character so long as a trade/imperial item is in the other's inventory. This way you can prevent cheating while letting full lifeskill characters be useable in tag teams.
Back when Trading was actually competitive in it's Silver per hour 4 years ago, it made sense that you couldn't use trading on tagged characters, now when the most you can make is 10m per hour trading, this and the server swap cool downs are stupid relics.
+1 PLEASE. For anyone you has their main character with their guru fishing and master trading; I should not have to coupon it off my character just to use a tagging system to grind more effiently (should just balance pve grind tbh). All I can say is wtf is going on; Why do I need to just through all these hoops.