That I can totally agree with. I'd have trouble upvoting (and considering it quality) a post with a single line. I have to feel that value has truly been added in some way. I may not flag it, but I'd probably leave a nice comment trying to inform them what I (or the community in general) might need to see to get it upvoted/rewarded.

This is a newer area for Steemit users in general and we'll all have some subjective things to figure out on what we want to upvote.