Comments purged; please don't make me regret suggesting this approach. It doesn't matter how much you personally love ID questions, unless you're volunteering to personal migrate, retag, edit, answer and forever maintain hundreds of them then you're not defending anything - you're volunteering the time of
other people who've already invested gobs of it and aren't willing to invest any more. We've successfully done these mass migrations on probably a half dozen sites, including sites with
no active users whatsoever - that's why I like it, and that's why you should too. —
Shog9 ♦ Jan 23 '18 at 5:06