The purpose of upvoting and downvoting during this period is to establish what are good and bad types of questions for the future site. If you downvote something without explaining why, you are preventing us all from making the SE better. Please comment specifically why a proposed question is bad. Otherwise, please Answer here why we should allow downvoting without clarification during the Definition phase.
To be clear, we should be downvoting things. In fact, it's not a bad idea to post a question you know would be bad for the site just to inform others that it is bad. The problem, in my opinion, is not explaining why something is inappropriate.
Proposal: Sanskrit Language
Related: Downvotes without comment