You can’t reliably tell that an artist has a porn blog just from looking at their SFW work, memes…

You can't reliably tell that an artist has a porn blog just from looking at their SFW work, memes notwithstanding, but if they do have a porn blog, you actually can pretty reliably guess based on its content whether they have a second, different porn blog for kinks they don't want to put on the first porn blog.