Sealed Lock Doesn't Work?

It works with my purple cape, but I'm scared as hell that I might lose my Versalmas Hat forever. >_>That's good. I don't want to pay 30K locking 10 items every three months.LoL. It's not really, because Nexon knows that too many people share accounts these days.

In KMS, aren't they able to delete their locks by typing a pin?

Also, I heard in MSEA when they lock an item, they can't unequip it. (As evidence from some guy who had his zhelm 100%ed all the way through and locked by a hacker so that he can't unwear it or break it using a dark scroll)

I'm able to unequip my locked Purple Cape...

That sounds like a problem with the way MSEA implemented them, it's certainly not how it works in KMS. I could equip and unequip the item I test-locked, no trouble.
(unfortunately by locking it, it also can't be disassembled in maker, which is what I was going to do with it in the first place. XD)