The things which make my own Reddit feed and Animal Crossing Bells also top the list on hot after the sticky are varied on subject so I would not say there's an issue with shared occurrences that neighborhood upvoting and downvoting does not already solve.
I usually think spoiler tags are somewhat silly, but you would want to go further than simply time travel in the event that you really wished to avoid spoiling things people haven't seen yet. All out of present season content would need a tag weather it's an old picture from your image library or a new picture from time traveling both will show new players thing they have not already seen. Plus things like the hottest direct video clips will require tagging since it shows new content before anyone gets a chance to view it in-game.
I really don't find any problem with memorials. I believe remembering your loved ones is beautiful and shouldn't be judged just as something dark or scary.
I don't think spoiler tags for content that's been in Buy Nook Miles Ticket the sport since launch is fair. Once the match is out its own out. Anything found in the game after that is fair for seeing. As far as New Horizons go, how will spoilers for content even work when there are two hemispheres and several time zones?
The Wall