Since WowProgress was able to implement this feature through Battle.net Sync, mostly used for carrying over M+ Score after a transfer or name change, it would only make sense since you have Battle.net Sync already active on the site, no? From my standpoint, I would not be sure how much man power it would take to put this request forward, but if a lot of man power is required, maybe make it Patreon only? I would like to know your opinion on this, regardless if you would go forward on it or not.