"To call everyone who disagrees with your opinion an armchair expert is . .. . . useless."
Point taken, even though I think you think I had particular recent commentators and critics in mind. Not so. If you are wondering about my opinion on Erebus, (and as I said before, I am the last person to claim any expertise), read my earlier posts. I think you will find that by and large on points that have been debated at length, I don't have a hard and fast opinion either way. As stated earlier , among the to and fro of the whole business that keeps the debate alive and interesting are the unresolved paradoxes.
If you read back through the reams of threads over the years, there have been certain kite fliers who've warranted the scathing remark Paul Keating was fond of, referring to an opponent having a sparrow's nest of a brain*.
Had no idea 'armchair expert' would give offence. Skins thick and thin are the norm. (Can't repeat some of the names I've been called. Might be ladies present.)
*All !!!! and sticks.