Which is yet another reason (of the many) why we aren't so excited about the "meh" commentaries. Hardly ever useful to the author.
Good point. For me, vague and negative criticism is not useful to anyone, but vague and positive criticism can be.
Specific and positive--"I love it because ___" promotes interesting discussion, imparts useful information to author about how the story was taken, serves to boost the moraleof the author.
Specific and negative--"I hate it because ___" promotes interesting discussion, imparts useful information to author about how the story was taken.
Vague and positive--"I love it!" promotes no discussion, does not impart useful information BUT it can give a morale boost to author. Note that if given the choice between "vague" and "specific" I would always choose "specific". "I love this story because ____" is better than "I love this story."
Vague and negative--"meh" promotes no discussion, does not impart useful information, and gives a hit to the author morale with no benefit.
For me, one of the biggest obstacles in the writing biz is my own morale. So far, my acceptance:rejection ratio is about 1:50 for paying markets. That's a lot of bad news for every nugget of good news. According to Duotrope, that's better than average ratio. It's very easy to think about giving up and say "I'm going to do something else with my free time instead. Nobody likes my work." A positive response, even if it's not specific, is HUGE. If a stranger reads your story and says "Wow, that was fantastic!" it makes a huge difference to know that you made that one person's day just a little bit more enjoyable, and for a few days at least it's a bit easier to stave off rejection depression.