Maybe just take a step back. She was only trying to help. If you do not find the information useful, then just ignore it. She almost certainly agrees with the advice that other experts already gave, so piling on is of little value. But adding something new is potentially valuable, if tangentially related to the issue you posed.
Why am I commenting here? I don't have anything particular to add about your anemone problem, but as a person who has answered tens of thousands of questions here at Reef Central, I feel it may be useful to point out that all of us do it for fun. If you make it not fun, folks will simply not help you.
Many people I answer questions for do not always know what questions to ask. I often have to point out that what they should really be focussing on is "X", and not the "Y" question that they posed. In your case, if it is a gigantea and not a haddoni, then if you solve this particular problem, you may want to take that information into the future as you decide how to care for it.