random downvotes confuse me so much

i’m not sure if this is me being autistic and not getting it, or more of a reddit thing i never picked up on.

i get so deeply confused when i see neutral comments with downvotes. often times it’ll be someone simply stating their own experience, or saying something completely true and it’ll have a few downvotes. do people just go around downvoting anything they dislike? i typically will only downvote rude comments, that’s about it. maybe i’m not understanding the true function of upvoting/down voting?

i would love insight from other people on this!

edit: not too sure why, but i’m getting downvoted on most of my comments on this subreddit. not sure if i’ve upset someone or if im being trolled, but i’m going to assume i’m not doing anything wrong until someone says something!

edit 2: thank you to the mod for their informative comment! i had no idea downvote bots were a thing, and i hate that they are. it also seems autistic communities are unfortunately targeted for negativity. either way, this thread has left me feeling so supported and understood. thank you to everyone for their kind and insightful responses!