On occasion I will accidentally click the downvote button in an exchange I don't have 125 reputation on. As the pop-up says, nothing public happens, but the downvote is still recorded. Is there a way to "unrecord" the downvote? I've been upvoting then removing my upvote in the hopes an upvote still clears a downvote for sub-125 users, but I have no idea if this is actually working. Do recorded downvotes from sub-125 users even matter?
It wouldn't really matter even if you did downvote without the privilege (and give negative 'post feedback'). The post feedback just gets stored in a table in the database, and isn't actually used for anything meaningful. It will not:
- change the post score
- affect anyone's reputation
- convert into a 'real' downvote even if you pass 125 rep.
I don't know of a way to reverse your post feedback, but I don't think it's really a necessary feature, as very few people even know the data exists, let alone use it for anything meaningful. It's only really visible from SEDE or the post feedback statistics in the 10k moderator tools.