Domestically, in a well-known Chinese-language forum's general discussion area.
Among a mix of nutritious and not-so-nutritious posts, a new post suddenly appeared.
[Supernatural Event, the Ghost of the Ecological Park!]
Clicking in, one could see a long paragraph from the original poster.
[...I'm telling you, this is real, I saw a ghost on my usual way home! I noticed a new shop appearing on the street, went over out of curiosity, and found it was a botanical garden with all sorts of plants, animals, and a woman who even educated me about ecological and environmental matters. But when I went to check it out the next day, everything was gone!]
The replies below were very real as well.
[No pictures, no truth, you gotta post pictures or it's hard for us to believe you.]
[Did you encounter an environmental princess who wants you to become vegetarian in the future?]
[Are you sure you didn't run into a lunatic or something?]