I would love to get featured by them, But I don't know if they would want to do it. There are stories where people turned as little as 10$ into massive amounts of 500k-2M and they didn't post it, Part of that is the user's privacy. Nonetheless, I love stake and have a lot of respect for them.
Perhaps, they must reach to you, ask for your acceptance before they share it publicly.
I don't know about their rules to share user winnings but most likely, there should be a consensus between them and user before they can share it. If you would like to share it, you can proactively reach to Stake.com's representative on the forum.
Their ANN thread:
https://bitcointalk.org/index.php?topic=2072589.0Stunna:
https://bitcointalk.org/index.php?action=profile;u=81292 (representative and owner)
My VIP host is Eddie the owner, I've asked him in the past if it's cool to do share wins and he said yes, He is the one that set up my affiliate link, He also encouraged me to do it, and he told me it can be really profitable.