I have had posts downvoted because members have mistakenly believed them to be spam. It still lists a downvote from @fyrstikken on my first vote, which was quite the bummer because I tried my best to create an intriguing article based on my own experiences and the local news coverage of a Black Lives Matter event in my town. I also have a downvote from a @dho that has only one reply and no blog entries. The up/downvote is a tool that should be wielded with care.