Firstly, Richie Allen is a hack journalist -- most likely controlled opposition -- and I personally speak to Ken on a regular basis.
He has had repeated character assassination attempts throughout his life. His ex-wife and children have been targeted. He has been accused of bringing prostitutes into Gaza, sleeping with married women in Gaza (whilst his wife was about to have her second child), fraud, and a number of other things.
Having personally spoke with Ken, I can vouch for his integrity and honesty. I have even trusted him with some private information, and he has kept his word.
Many of these character assassination attempts started when he boarded the mavi marmara and was involved in the disarmament of two Israeli commandos. Since then, he has been listed as a suspected terrorist on the official Israeli defense force website. When you make enemies with the likes of Israel and are even falsely accused of being a terrorist, you best bet they're going to do everything they can to destroy your character.
I understand what this looks like for someone unfamiliar with his work from the outside, and that's the purpose these character assassination attempts serve (look at Julian Assange). But I can assure you, this man is not a fraud. He's a friend of mine, and I can personally vouch for his honesty.
Max Igan (not even his real name), on the other hand, the man making the allegations, is a proven liar.
It's up to you to make up your own mind, but research and compare Ken's actions to that of Richie Allen's and Max Igan's, and it becomes clear who is the real deal and who's not. Actions always speak louder than words.