Single post in Account management updates

Looking forward to these changes as well. So username change will still have frequency limits, is that time limit going to remain the same (1 year) or will it be adjusted at all? Another question, I'm assuming the automated process of usernames is not going to include freeing up usernames of accounts that haven't been online since the opening of PFQ or so? (I know there are a lot of names locked behind accounts that haven't been online since 2015 or so and am just curious about this)