Thanks Helen and Nathan for most recently contributing to this discussion in the spirit with which Vic originally posed the question.
Let me update my answer from 18 months ago.
Many reasons, and the first was to get out of my system the anger and frustration I felt after being shafted by the Swiss scammers. There was a rage and passion that needed to be channeled.
Over the years amazingly I learned to understand more through all the brilliant contributions on this Forum - and a few other locations as well - and in the big picture even the really bad moments dealing with scammers, trolls, unbalanced administrators ( not here), through the hostile times, I learned so much, also that your 'enemies' can teach you most. Those can be personalities, attitudes, conditions, and self beliefs, of others, and oneself, that are immature and need to change and grow. Also one needs to accept more, and not judge, although it is necessary to observe and consider.
What has really come clear is that by taking a risk, and putting forward ideas and observations, the return is magnificent and through this Forum I have had the great good fortune to meet individuals who have contributed in my life to be 'life-changing' in the highest sense. Now that is intended to be the highest praise. Thanks Vic.