If you’re worried because you feel like the app is trying to promote your post/comment by upvoting it, then don’t worry. This is the default action on lemmy (and Reddit). Essentially every post and comment starts with a score of 1, so that is what people expect.

If you were to find a way to disable this for yourself (or manually remove the vote), I think that your post will get buried because the algorithm “expects” a score of 1 and your post would basically look like it was instantly disliked, receiving worse ranking for anyone browsing by anything but New. Note, I don’t know exactly how the algorithms work, so it’s possible that I am incorrect here. I could also see the algorithm ignoring the OP’s vote and your post ending up in the same position.

Additionally, with a score of 0, people are more likely to skip over it, thinking it’s bad content. Or, even worse, hive-mind downvote it.