read on many websites , what people tell about this broker.
the proof that this "trader" choosed this broker, you know how to find this or?
the proof why he choosed the broker? i dont know why, but it would by stupid or extrem unexperienced to choose scam broker or would be to scam other.... so you can decide what was his reason.
ironfx was well know for fake reviews, fake statements of traders and accounts and fake IB people, try look at forexpeacearmy or other rating websites, so you have a fast look , so you can calculate the chance, this person was a fake or real trader for your own with the correct informations. at the moment it looks like you dont know what ironfx has done and is.