I saved photocopies of my best futures wins, back when the Rams beat the Titans in the Super Bowl, but it never even crossed my mind to post them. What's the purpose? Money pays for the ticket. It could be anybody's money, not necessarily mine. It shows you had a winning ticket. There's no context for how many other similar tickets you had in play with other options. The only value is when people can verify that you weren't blowing money on other options and cherry picking the winning ticket with which to pose.
Now for my Rams/Titans tickets, they were the only NFL futures I had that year, and the president of Golden Eagle Distributing (who Mr. Mendelson may know) was plugged in with me, so he could verify that was all we had.
Note to forum readers: coach is trying to be sarcastic with me, but he really doesn't know much about sports betting. Do not ever post your open tickets on line. Nothing good can come of it. You risk your ability to cash the ticket.