How do I mark my posts as NSFW or Spoilers?

The following feature is used to obscure a work from immediate view, letting users who want to see it choose to do so. This is particularly useful when the work might contain spoilers or be NSFW.
To blur out one of your posts, you will need to enter the Japanese words ネタバレ or 閲覧注意 (respectively meaning "spoiler" and "NSFW") in the title or description of your work. Entering either of them as a tag will work too.
Doing so will not affect the work's smaller thumbnail, but it will blur the artwork to the viewer who opens it.
Clicking the "Show" button will reveal the artwork.