Given that the securepoll-view-voter-pii right grants wholesale access to all voters' PII, there is a desire in enwiki to not collect PII at all from SecurePoll elections. For scrutineering of such elections, the CheckUser tool would be used as normal to retrieve the PII only for suspicious accounts.
However, a problem with the above approach is that if an account with no edits in the past 90 days votes in an election, the CU tool will have no data.
A solution is to have the voting action create a log entry, which like all other kinds of log entries, populates the CheckUser result tables.