8
Why vote on posts?
(lemmy.ca)
A loosely moderated place to ask open-ended questions
Search asklemmy ๐
If your post meets the following criteria, it's welcome here!
Looking for support?
Looking for a community?
~Icon~ ~by~ ~@Double_A@discuss.tchncs.de~
Nothing is entirely subjective, at least not in the sense that you mean.
There are different degrees of shared opinion ("inter-subjectivity") among people, depending on the group. One of the advantages of the "communities" (or "subreddit" / "magazines") model is that you can find people with whom you share opinions, and if that community doesn't already exist, you can create it.
By joining a community that shares your interests, and customizing your feed to show those communities, content that gets upvoted will tend to reflect your interests, and upvotes will be a signal of quality.
People have limited time. By having an algorithm that can sort by likes / dislikes, everyone saves time by delegating some of the time-consuming task of discovering relevant content to the algorithm.