This seems to be a very easy task but enhances the SecurePoll capabilities a lot. By adding this small option, we can implement literally every ranked voting system, such as single transferable vote (STV), and tally the votes by hand using anonymous dump of votes!
Later we can add various counting methods such as Borda, IRV, Meek, and many others available in other voting software.
This card tracks a proposal from the 2015 Community Wishlist Survey: https://meta.wikimedia.org/wiki/2015_Community_Wishlist_Survey
This proposal received 11 support votes, and was ranked #63 out of 107 proposals. https://meta.wikimedia.org/wiki/2015_Community_Wishlist_Survey/Reading#Make_quality.2Freliability_of_an_article_more_clear_to_the_reader