I mean, they should know that it contains stuff from a show they haven't seen. If they choose to read it, fine, cool. The fact they read it should be spoiler enough, although new stuff with significant ones should be spoilered, absolutely.
It's not bothersome to tag things, it would take 1 second to add the tag. it's that at some point it becomes unnecessary.
Madoka is, again, the best example of the problems involved in the tag. Imagine if the spoiler tag had existed when Madoka first aired and the doujins were produced/uploaded, and when Mami died, we tagged an upload with Spoiler. Fair enough, that's cool. But when does that stop. That is still a spoiler even now, 6 years after the anime aired. That moment is talked about in so many doujins and fanart, comedic and dramatic. Does that mean even now, we would be tagging doujins that mention it (and other moments from the series) with spoiler? No, that'd be complete overkill, and what, half the Madoka doujins on the site would be tagged with it now.
It's only really when stuff like new series, new movies, etc, that a thing like it should get tagged spoiler again, which is where the main question comes into play: it's not so much "should they eventually stop being tagged", as much as it is "when should they".
last edited at Feb 4, 2017 3:06PM