Identification questions are of limited use to other users of the site, and are asking people to spend some time identifying the Movie or TV show, so it is the responsibility of the person asking the question to try to answer clarifications within a reasonable amount of time, certainly within a day or so.
Identification questions may be deleted if it is considered that they are unanswerable and the person asking is not answering clarification comments. Questions from unregistered users unanswered after 2 weeks are liable to be deleted. Questions lacking in research, i.e. being easily answered from an actor's name on IMDB or Wikipedia, might get closed.
Should we have a similar rule here on SF&F:SE?