Yeah, as it is an internet phenomenon, the spoilers get harder to avoid, even in everyday browsing

That's how it is anymore with games, movies, TV, anything. As soon as it's able for a single person to have experienced part of media, people will start spoiling it, so at this point people will argue that it came out long enough ago that it's fine to spoil it. I pretty much played it through as soon as I got it, so that I wouldn't get spoiled out of nowhere. :B

And then there's the people that try to tell you how to play Undertale and thereby completely miss the point of the game.

It is sad indeed when proper tagging gets ignored. Then again, I'd like to think any media is still very enjoyable despite a spoiler... If one spoiler ruins the entire experience, then there was not much content to begin with, was there not? I was literally spoilered [sic] but a few hours before seeing the new Star Wars movie.

Also if you encounter incorrectly rated content in Weasyl, remember to file a report so the staff can look into it! That way we'll be able to (hopefully!) prevent mis-categorization in the future.