A Japanese AI researcher, alfredplpl, who had developed "Cool Japan Diffusion" and "AI Irasutoya", asked the developer of Waifu Diffusion not to release models based on the Danbooru collection. So far alfredplpl's concerns have not been taken favorably (https://www.reddit.com/r/StableDiffusion/comments/1031d9i/cool_japan_diffusion_210_and_some_japanese_concern/ https://www.reddit.com/r/StableDiffusion/comments/102iweu/cool_japan_diffusion_210/) (partly due to language barrier?)