User blog comment:KurwaAntics/Polls/@comment-5811199-20170423011757

SecurePoll is made for 1.20+, which means that for it to be available it would need to be backported to 1.19 - a bit of work would need to be put in.

Polls that act like ballots, like admin nominations and ballots, are pretty sparse around Fandom and polls that have less significance on security - like voting for your favourite character or show - is a lot more prevalent. So, I don't think secure ballots are significant of a feature enough to warrant time being spent on making one work in Fandom.

The best way around it is to vote using forums, discussions or blog comments, so that there's a list of users linked to their vote.