Documentation?
It’s not that everybody thinks the Ignatian Epistles are forgeries, but it certainly has been discussed with some vigor by able Biblical scholars for many, many years. Below is a link to one of many such analyses:
http://www.fullbooks.com/The-Ignatian-Epistles-Entirely-Spurious.html
BTW, I was unaware that there was even a controversy until Iscool brought it up, and a Google search (”Ignatius forgery”) very quickly turned up a plethora of conflicting opinions. In any discussion of divine truth, I would think it was essential to honest discourse to properly qualify a source. If you are convinced the epistles in question are genuine, fine. But if you are trying to woo non-Catholics to your view, it doesn’t help to obscure legitimate controversies over the materials you intend to use to support your views.
As an attorney, I am ethically obligated to be open about my legal sources in court, and can get in real trouble for willfully concealing contrary data points, even if I don’t think they hold water. I cannot imagine we would explore the truth of God according to a standard lower than that used by lawyers. Think about it. Just sayin ...