It is still technically possible but it requires admin to make a data entry and then remember to remove it at the time agreed upon. There is no automated process for either step. This is a superb example of why I prefer to request the member to show it as his/her signature for 30 days, rather than expect admin to remember to do so. I believe that this member was told that the former handle had to be shown for 30 days - but here it is, years on, and it's never been removed. (And if that member is reading this, and wants that note removed, please message me.)