This question: Would Zorquan be a Unity domain patron?
As I said in a comment, given that the question includes "2e Forgotten Realms" (provided for background context for lore purposes) and "we're playing a fairly by-the-book 5e campaign.", isn't this confirmation of D&D 5e? Can we not just add the [dnd-5e] tag ourselves in this case? Is the policy really this strict?
Rather than having comments under the question be the place to discuss this, I decided to open this meta so that we can decide here whether or not adding the tag in this case violates the policy.
Those who know my view on the policy would be able to guess that I want to add the tag, since I don't agree with the policy in the first place, but in this case, I think even those in favour of the policy might agree with me that in this case, there is zero ambiguity. Given that the extreme strictness of the policy makes no sense to me, I find it difficult to judge cases like this where it seems insane to me not to add the tag.
Do we add the tag, or do we go ahead and close the question and force the user to add the tag, even though they've already stated 5e in the question and made other references to D&D? (Not to mention that they've also included the unearthed-arcana tag, the description of which mentions that it is a D&D 5e tag.)
Is it really the case that system tags are strictly hands-off unless you are the author of the question, with zero exceptions (diamond mods excluded)? (Note that I'm not asking for anyone to convince me that the policy is a good thing; that's what the other meta Q&A, linked earlier, is for. This is about clarifying the policy's use in practice, with respect to this specific question, linked at the top.)