So IMHO if you wanted to retain transparency and they use ranked voting, I'd go with 4,3,2,1. Someone else might do 3,4,2,1. Either way the result should be counted against secret voting. There seems to be concern that people don't even understand how the voting process works and messed up their ballot. Oddly, this should be verifiable by asking them, since secret voting wasn't in place at the time of this vote.