I am considering creating multiple accounts to upvote this even more.
Ok just kidding, but seriously if this is at all technically feasible it is by far my most missed feature. I often used my upvote history as a sort of very loose bookmarking system. I realize I can save posts, but I usually reserved that for extra special posts that I really needed to save.
The way Lemmy is set up I've actually struggled to find a post I upvoted just a couple hours prior. It can be very frustrating.