I've seen a few requests for solution manuals recently using the reference-request tag, and while I didn't like seeing such questions, I could see why someone would see using that tag as justified (though I would argue that a reference request would be for a general source about some subject, rather than asking if a specific solution manual exists and is available online). There has been past discussion where it seems like the consensus is that such questions are not allowed, so if this is still the consensus held by users, should the tag be edited to explicitly state this?
Upvote this answer if you think that questions soliciting solutions manuals should be explicitly prohibited under reference-request. In the future, questions soliciting solutions manuals should be closed as off-topic. The tag wiki will be edited to reflect this rule.
Upvote this answer if you think that questions soliciting solutions manuals should be allowed under reference-request. In this case, no change will be made to the tag wiki.