So there is that fujisaki_chihiro, whose gender is put under spoiler in the wiki. When I started tagging I didn't look at it; my first encounter with the character was via chartags:1 -1boy -1girl trap. So I tagged all images depicting him as 1boy. But then I read the wiki and found out that with similar search query for chartags:2, chartags:3 etc he is left untagged.
So what should I do about him? Remove the 1boy and trap tags for solo images? What about post where he is depicted with other male characters?
Also, can anyone provide some more characters whose actual gender is a spoiler?