You've made a lot of wonderful points @antonym and it's definitely nothing, but the truth. Regarding the display of names of those who upvote a particular post, i think that might not really work well since these names will also display on the hive interphase.
So my take on this is to leave the names, but never show the value of upvote for each names. Those who voted will be able to see the value of their own upvote, but won't be able to see the value of others as well.
Regarding the aspect of receiving an upvote from a curation trail that shows no appreciable #pob value, most of these votes are from the hive interphase. This still bulge down to my previous point suggesting the removal of pob values of the voting individuals. Though the total amount of pob earned on the post will remain displayed.
Thanks for the great insight once again @antonym