This reminded me of a similar experience :
it's actually pretty funny, and I forgave the person. I met the person again later, and he greatly improved. Thus proving that i made the right decision not placing him in my blacklist. Also, back then, i was not the best player, nor the most friendly. (I must thank Charles the Great (BB) for my improvement in both skill and warlight manners) :
In this game, yeoldenglish blacklisted me, and now when I look back at this, i find this pretty embarassing. and if I were him, i would totally blacklist myself. However, this shows players can improve, and deserves a second, maybe even a third chance. Thus, i'm not gonna blacklist crazyman for now.