When someone ignores the possible duplicates, it clears it from showing up at the top of the customer card unless you go into the dropdown and search duplicates. It is too time consuming to check this for every customer we review. A lot of duplicates get ignored if someone isn't sure or if a salesperson doesn't want to risk splitting a deal.....
It would be very helpful to keep our data clean to have a feature that would allow us to see a list of all possible duplicates so we can review them in bulk. Our previous CRM had this feature and it was something that we cleaned up very often.