I really don’t think spoiler tags need to be divisive
Not if they are an obvious meme/juxtaposition such as Bernie sitting in Nook Miles Ticket your plaza, but should you photoshop on wings to your ensemble, place a hopeless thing on a desk, or change the color of a non-customizable thing it ought to be flagged so people will not be disappointed when they can’t replicate it in-game.
I really don’t think spoiler tags need to be divisive. At this time it will become an issue because there are no definite rules about what is expected and acceptable from the sub.
If the rules were clear (ie: spoiler tags necessary for events that haven’t happened in real time yet or spoiler tags required for articles that contain items that were attained via hacking to circumvent timelocking) possibly users would not take it as a personal attack on their play mode when individuals requested they use a spoiler tag.
Instead of feeling sensitive about a sensed conclusion about time traveling it could just be a simple”hey this is contrary to Animal Crossing Bells For Sale the rules, see sidebar”.