You are correct. Jonah Falcon's reported 13.5" is not the largest by far. And years ago, if you look it up, he was on Howard Stern's show and said he was tired of people sending him mail that proved they were larger or their husband or boyfriend was larger. He was asking that if you are larger, don't send him anything. I may be mistaken, but if I remember correctly he was getting a lot of mail about it, and it was all being delivered by the post office to his mothers house, which is the last address the post office had. And I think I remember one of the other staff members on the Howard Stern show chiming in that the phone lines were full of callers who wanted to get on because they were longer than 13.5" and/or their husband or boyfriends or some guy they knew as also longer than 13.5" I do know that the folks at Guiness World Records, after proclaiming Jonah Falcon the man with the "worlds longest", they received so many challenges to that claim with men exceeding 13.5" that they revoked the title to Jonah Falcon and officially deleted the category as they had so many claimants that seemed valid from what they were sent as supporting photographs and videos, that they kept seeing so many far longer every day in their mail.
Not every body with 13.5" or more wants to be a porno star, or is on lpsg, or seeks any sort of fame or notoriety.