I scale my giving based on how valuable I find the post/comment and how much I would like others to see the post or comment.
1 sat = mildly interesting 5 sats = interesting 10 sats = very interesting 20 sats = extremely interesting, important 50 sats = Others need to see this 100+ sats = Awesome post/comment/user, very much appreciated
1 sat and 10 sats are what I give most commonly.