Hopefully the poster that you have responded to is somewhat educated on the subject of a water fast.
I think the chances are better than 50/50 that he/she is, based on the number of days into the fast.
Most of the advice you have presented, if not all, does not pertain to a water fast.
Water fasts and orange juice fasts are not the same.
You may want to hang out for a while and dig into the subject of the Water Fast -- as there is something to learn.