Oh my goodness - have come back to this this morning, short of time, to see there has been a lot going on and rather heated. I am so sorry the initial question has sparked so much upset. I will go back through it later as there is so much detail and I want to be able to address this when I can do it justice. Meanwhile, thank you all for the time & considerable effort that has gone into some very lengthy posts, which do contain some info I'm sure will be very helpful.
Without the input of very knowledgeable posters with a scientific background, I would have found this site far less helpful. Ladies who take time to post in depth with the sole intention of helping others when they also have very busy lives outside MM, will not have time to polish every sentence and inevitably sometimes run the risk of inadvertently posting something that can be misconstrued. I hope there is enough goodwill that we can all accept that this will sometimes happen & that probably, had we been in the same room as a poster when the comments were made, such misunderstanding would be much less likely to arise. Here, remote from each other, we lack the non-verbal cues that enhance & soften our words, the tone of voice, facial expression, gesture & so on, & also miss the opportunity to ask for clarification which could quickly avert unnecessary clashes.
I am always grateful for the knowledge & experience willingly & selflessly shared here & hope that anyone who has expressed a doubt in this thread about continuing to contribute to MM, will take time to reconsider, in the knowledge that we all mean only to help each other. Thank you all for your support & please, don't anyone walk away as a result of this thread.