In the guidelines, ask people to write titles that try to summarize the content of the linked page. Think of titles as micro-abstracts. You could even change

In the guidelines, ask people to write titles that try to summarize the content of the linked page. Think of titles as micro-abstracts. You could even change the 'title' field in the submission form to 'description' (with its content limited to fairly small number of characters, of course. e.g. < 100). Of course I'm just speculating about the potential value of this, but it might indirectly help a little.