Yeah they're not very popular, partly because they're not very powerful: it's always multiple-choice, answer order doesn't randomise, and I don't think you can see how many unique people even voted (which can vary wildly depending on how many options people click on average). Fwiw, I do like multi-voting better as a default than the usual default of FPTP, but still

There was a short burst of activity shortly after introduction, probably a decade ago by now. Would be interesting to plot how many per week^W year make it to the front page or get more than a dozen votes