KS or anybody else are welcome to state their own experience, but arguing "I was like you before my eyes were opened" is creating a fake additional anecdote. Just because person A went from opinion/situation X to opinion Z, it doesn't imply that all people with opinion/situation X will eventually come around to opinion Z. That line of reasoning just dismisses a persons argument without giving arguments.
Sorry I can't describe it better - I guess it just goes against my sensibilities for "fair debate". Just my opinion, obviously.