I see GitHub stars in orders of magnitude (1-9, 10-99, 100-...). If interested, I also look at the other public metrics: # of branches, forks, open and closed PRs, time since last update. I have also used <10 star repos in high traffic prod env with no issues. I think you're right and I'm fine with 1 star = 1 person took interest for at least a moment and liked what they saw.