If a word is banned, then writing it with letters missed or blanked out isn't OK.
If a word is banned, then using a picture to represent it isn't OK either.
The above apply even if you say "I've done that because I think we're not allowed to say it" which is basically the text equivalent of using your hazard lights to justify parking on a double yellow line or to acknowledge the fact that you just did a sneaky manoeuvre of any other kind.
Posting a picture of a disabled baby in relation to the above is going to be something that's really hard to justify.