That's right demo, I myself face difficulty while posting replies. Most of the times I don't know the answer of the questions asked like "whats the b/f of pois" or the one I am getting while I am trying to post this comment "Which symptom of POIS is b/f" . I don't know what b/f stands for.
As a hack I do back and forth several times to get question "Which user is Admin:" and then I answer.