AFAIK, we can't edit when posting from an iPad. It *****, really. 😟
I'm almost always posting from my iPad, so I can't recall exactly, but doesn't the edit post function (when posting from a computer) have a time limit? I view the forums on Safari on my laptop. (As I'm currently doing. I'll check to see if I have any issues editing this post.)
I could maybe live without editing if I didn't have to sign into the forums almost every single time I access them, even if my browser or tab remains open. It's annoying and just so rinky-**** for a support forum.'
ETA: Hee . . . I can understand s**ks being edited out but the other half of rinky-d*nk???