An interesting point. Yes, I do think a blurb is a good "filter". Spelling or grammatical errors in a blurb are a sure sign of a bad writer. One only has to look at posts here on MR to see that (at a rough estimate) a good one third of people don't know how to use "its" and "it's" correctly, despite the reasonable assumption that, as a reading forum, members of this forum might be expected to be more literate than the population as a whole.
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