I've had this situation happen, where I wasn't aware ahead of time a particular question would be on a ballot.
"Shall the Constitution of {...} be amended so as to abolish the existing Judicial Qualifications Commission; require the General Assembly to create and provide by general law for the composition, manner of appointment, and governance of a new Judicial Qualifications Commission, with such commission having the power to discipline, remove, and cause involuntary retirement of judges; require the Judicial Qualifications Commission to have procedures that provide for due process of law and review by the Supreme Court of its advisory opinions; and allow the Judicial Qualifications Commission to be open to the public in some manner?"
I wasn't sure how many of these powers were already granted to the existing commission, or precisely why there was agitation for change. Although I figured it was probably to make it easier to boot problem judges, I felt I didn't have enough information (i.e., if the new version was being proposed primarily as a witch-hunt against a specific judge) to pick a side.
I abstained.