It’s natural to join with people in common efforts, but I do feel resistant to the pressure to upvote exclusively based on alliances. This whole “I’ll upvote you if you upvote me” can seem a bit like buying a beer for your friend in exchange for receiving one later. But it also adds pressure to upvote content without the merit of the content itself. I only want to share and upvote content that I truly enjoy, not just game the system!