Used for any post of drawr, a oekaki site. The site has been discontinued, so all posts on site from there are assumed to be bad drawr id.
Founded in October 2008, the site's service ended on December 2nd, 2019, ahead of the imminent end of Adobe's support for Flash in December 2020. Existing users were advised to migrate to Pixiv Sketch.
This tag implicates bad_id (learn more).