Most sites, at some point, discuss whether or not to allow "identify this" questions. For some, allowing these works (with a lot of requirements to make them on-topic)... for others it becomes a pain point. Since I've seen this happen several times, thought it might be worth pointing that out.
At some point in the past, I ran some numbers on the Anime & Manga site, and came to the conclusion that most ID request question were asked by new users, as their sole question. That meant most users were "hit-and-run" users, popping by just to have their anime/manga identified, and then almost never showed up again to contribute to the health of the community. Furthermore, the quality of these questions tended to be low, and many ended up getting closed because they didn't conform to stringent requirements. These numbers later served as one of the drivers for that community to decide to disallow these questions, making them off-topic. I've never ran similar numbers on other sites, but other sites have banned these questions too, for similar reasons.
That being said, other sites do allow them, even if they have very stringent requirements for what needs to be included in such questions. One such site is the Sci-fi and Fantasy site, which links users to a guide on how to ask good "identify this" questions in the "draft your question" sidebar when asking a question. On the Literature site, the [identification-request] tag has extensive guidance, too.
So, yeah... it's ultimately up to you to decide whether these should be allowed or not, and under what circumstances. Hope the context helps, and that y'all can take the lessons learned by other communities to inform how to approach this issue.