Sort:  

Good point regarding the loss of the username but I think if the tool brings visitors, I'd be happy with them arriving any which way.

Meaning more to do with SEO if shortened links get volume will be blacklisted a unique URL is always better to rank a site

That should be good for blogs on Hive then as even ones with the same title are given a slightly different URL if the current one is already present and written by the same author:

https://peakd.com/hive-174578/@abh12345/the-hive-engagement-league-qa41qe

https://peakd.com/hive-174578/@abh12345/the-hive-engagement-league-q9qyjl