I have a new to the Scryers On a character (Tikelli, Echo Isles), and I was doing the quests Single Sunfury Signet and More Sunfury Signets, using Signets collected on other characters. I knew I had some in the bank for this purpose, but I wasn’t sure how many, so I scrolled over the "sunfury signet’ picture. I had 1060 in the bank. So I kept going. After about 10-20 more times, I lost count, so I scrolled over again. It shows the same number of signets. I did the other quests, to get to Honored, but didn’t track to see if the signets came out of the bank (I didn’t think to).
I am stopping using the signets, because I don’t want to get in trouble for exploitation. I am at 5835/12000 in Honored.