The first lines of a story or poem are visible before the link is opened. This isn't always desireable, since anything with a low word count, such as some poetry, is fully visible to be read, but without its appropriate formatting. In other cases, a disclaimer has been put in place when the content of a story might be shocking to some readers, so that the first lines do not appear.
Would it be possible to have a setting so that an author could opt out of having the story preview shown? Or is it in place and I haven't come across it, which is not to be ruled out.