
This is just my two cents, but unless you are a friend of John's, I believe you should stay away from the finish and let John celebrate this achievement with his close friends and family. Some people like large weddings with lots of hoopla and partying, and some people prefer small weddings to be shared with family and a few close friends. Looking at John's online activity, I believe he's a fairly private person who would prefer to share this accomplishment with his closest friends and family.
Lori Prater knows John best, and unless she says otherwise (or one of John's better friends says otherwise), I think it would be best to assume John would like to share the moment with his family and closest friends only.
To the extent this has become a public event and John has inspired you and you wish to congratulate him, if you don't know John, I think sending him a private message would be best.
Like I said, just my two cents, and a reasonable assumption unless it's posted otherwise . . .
D'Arcy