I’m not defending the fellow but it could be that he’s found his autograph being sold on EBay.
After my London-based aviation organization (www.airpilots.org) invited Neil to be the guest of honor and receive an aviation award (presented by Prince Philip), when Buzz found out he pressured me to try and get him, not an aviation award from my organization, but a ROYAL honor.
Not kidding.
His ego wanted to “out do” Armstrong. It was clear to all of us.