About tags, because wiki not created
forum #8081 get info about creation history imageboard_sample tag. forum #13020 duplicate as QA (question, answer).
Short info:
Need use when image source from similar Danbooru site: yande.re, sankaku channel site, E-Hentai Galleries, etc. Sites repost artist posts from another sites (as Pixiv).
About exist tags and posts
We already have separate tags yandere_sample, e-hentai_sample. Partially weibo_sample, if image upload into Weibo as info-post with link to another site.
I see:
imageboard sample - 406 posts;
imageboard_sample source:*yande.re* - 11 posts | 265 yandere_sample;
imageboard_sample source:*e-hentai* - 21 posts | imageboard_sample source:*exhentai* - 6 posts | 306 e-hentai_sample.
* exhentai - section of e-hentai.org for the registered member.
Asnwer
Should be posts "moved" to separate tags or need create alias between imageboard_sample, yandere_sample, e-hentai_sample, zerochan_sample?