yay, amazing, I won :) Thank you a lot!
I feared that I might be disqualified because my latest trades I did just for completing this competition were not shown as 10 distinctive ones in StellarX, they were grouped together, but yay in the block explorer they do show as distinct. I think I will dig deeper into Stellar when I find time.
A pity that one cannot power up that pegged Steem ;)