In Levrone's hey day, bodybuilders were more focused on their prep than their tweets. Why would he disclose anything now, if he din't 15 years ago?
Because after his heyday, he has spent years building up a social media following
This isn't someone who is living life "simple" on the internet. He has been on hitting it fairly consistently for years.
If he doesn't want to show anything, that's fine - but don't then go do a Q&A session and expect people to dodge the elephant in the room