I demand nothing. I just exercise my right to terminate this relationship from my end and I exercise my right to write on my own blog whatever I want.
He is entitled to be outraged, stop it.
"I just found out that this company was infecting all their users with bubonic plague."
"Stop complaining. It was free!"
Offering something free doesn't make one immune to criticism and criticizing isn't entitled whining. This is fair criticism.