This is an interesting conundrum.
On one hand it would help locate foreign agent bots/bad faith actors faster and recognize vote manipulation by bot farms.
On the other it will lead to even more account-stalking problems, user drama, and would further enable vote dogpiling if you see certain known users voted a certain way.

I'm inclined to say no. They are already "public" if one wants to put in the effort to admin a standalone instance or run alts on multiple services they can see if they care- I personally don't really care