This is such a beautiful feature that you've built Ales, have been going through it for some hours now ... finding and fixing some that I recognize as my own or other South African profiles (only the Twentieth century profiles I leave as it is, figuring the managers should take responsibility for their profiles).
One question though - I have found a few 18th century profiles and after {{DateGuessing2}} and then comparing again on [variants] of surnames, found matches and proposed mergers. I then "hide error" ... I understood in a previous conversation with you that an error (if there is no possibility of making it into a "false" error) that has been hidden, will remain that way [edit: I understood it will show up again as an error after 1 month; there is no undoing it as an error mention]. I have added to many profiles {{Unsourced| South Africa}}{{DateGuess2}} and proposed some merges for some [but not for all] but what now if after a month, it shows up again as an error (with no option to make it "false") but is has some body to the bio, even validated?