I guess that there may be somebody out there who is willing to do it for free, people do things out of passion for free all the time. Having said this, the post is on a forum where work results in pay, so it's not overly surprising that people wanna get paid, son.
Would you write (i.e. use your time and skill) for free? How did you really expect people to respond?
I wouldn't, no, but I never said that I would' I said that there may be somebody out there who is willing to do it for free. In fact, I said that verbatim.
And, to be fair, it doesn't matter if 10k people respond saying that they want paying, all it takes is a couple of people who are up to the task to say that they will do it for free and the request is satisfied.
Good luck finding those two people that enjoy writing for free