I'm kind of confused by the question. Do you think an unverified commenter on a public website saying "all the stores in my town [not named] do X [but I didn't count]" is a type of hard evidence that I'm arbitrarily rejecting?
No; I think that there's no feasible way that anyone could have hard evidence one way or another for the underlying question, and that you should therefore take anecdotes more seriously.
