It is important that we understand the way we could always be playing safe when it comes to assets and how we often make our transactions, because we can't afford to make a silly mistake that may cost us our entire bitcoin into loss, I have also been observing on this, whereby it occurs in many instances that when I wanted to send a transaction using internal transfer, I got to receive some of my previous UIDs being suggested and if you're not careful, you may just ended up using them and send to another user you never intended to be your recipient, so I will also support that we always clear the history of previous UID we have used and ensure we copy the intended one, there are many ways one can lost their crypto assets once they are not informed.