a question that could also be asked is who is it that needs to learn?
you have commented on some flying in marginal metrological conditions that, by your own account, was all successfully undertaken.
we live in an environment of incredible pessimism generated by the "we know safety" experts out there.
aviation is seen as a disaster about to unfold.
the holes in the cheese are everywhere they say. they are about to line up, beware!
the reality is however quite different.
when are you going to learn that aviation can be successfully carried out in less than perfect conditions.
during WW2 the aircraft were such that they couldn't handle high crosswinds on landing. a lot of "wisdom" about landings came into being about then.
in my aeroplane I can and have landed with a rigid windsock at 90 degrees to the runway.
am I to take heed of "conventional" wisdom or can I continue to fly according to my own evaluations of risk, knowing that the conventional wisdom is of a different era?
so who needs to learn?
Sorry for the long quote but W8 obviously was there on the day as well, I'm not sure what part of a Thunderstorm would be described as marginal weather, maybe the part that is 50 miles away from you, you can fly however and whenever you like but not with me in the plane, when does one compare a crosswind with a downburst or microburst?, or maybe you have a better weather radar than my mark one eyeballs did that day. Your plane W8, your risk however a commercial pilot may have my granddaughter with he/she that day and I choose not to blindly accept that this chap had the right to take off when he could have waited a few minutes and operated the flight safely.