For me, the upvotes are ok. I use them more to gauge overall traffic. I have an idea the typical number of votes things will get, and I can see what deviates to see what is a hit, what's typical, and what isn't resonating. But without comments, there's no "why" anything is good or bad. I'm not really any better off than before to give you what you want. I can take a guess, but you could have also taken a moment to tell me. It doesn't tell me everyone's opinion, but it gives another things for the people that do vote to either add upvotes to that comment or ignore it.

Also, as someone providing the content, it's nice to have an interaction, even if it's minimal. Creating posts can eat up a lot of time, and I'm doing it to talk to you all. If nobody stops by to even say, yo, nice work, or whatever, even if I have a lot of upvotes, it still feels like I'm not talking to anyone. It feels like a chore. But if I get one person that says, hey, seeing this really made my morning, now I feel awesome and I want to post more.