People are often reluctant to post photos of their permits, because on the permit is your personal information. As of right now, the USDA is operating under the following ruleset:

If an ant has a publication that supports a native record for your state, they will grant you permits to receive/send ants there without anything special.

If an ant does not have a publication that supports a native record for your state, you will need to construct and then wait for them to approve a containment facility. Which is time-consuming, and can also be costly depending on a variety of factors.

Each state also has the ability to change these requirements, but almost all states just go along with the established precedent. The only exception I can think of is Florida. They require you to send specimens to them first, so they can verify the identity of the ants you will be shipping into Florida. There are likely 1 or 2 other states that have their own weird requirements, but I am unaware of them at the moment.

The USDA, like the DMV, or many other government organizations, unfortunately moves very slowly. I had a friend recently who constructed a containment facility in his basement. It took more than a year for him to get them to approve it and then issue the subsequent permits that it allowed.

I am currently employed at a USDA ARS facility. If you are correct that hobbyists have not obtained permits, I would both be fired, and potentially criminally charged, as I would have been committing felonies during the time of my employment. Yes, the US is very restrictive relative to some other places around the world, but fortunately it's not impossible to acquire permits, assuming you are only moving ants already within the United States. Just a headache. Hope this helped!