I'm sorry discord screens were brought into this thread.
The purpose of taking a stand against illegal trading isn't because of the risk invasives pose directly, it's about putting the best foot forward in the hobby and ultimately protecting it from opportunists and from regulatory bodies themselves. It's also to protect the hobby. We try to match the effort shown by regulatory bodies to act in good faith and be able to police ourselves. It's not to ostracize people.
Bans have already happened in the millipede hobby because their community didn't listen to the regulatory bodies. Having spoken with the person who brought that ban down, it could absolutely happen in the ant keeping hobby.
We've also had users in the community raided, or met face to face with USDA, so being able to say hey we're trying is pretty important going forward. There are also instances of people in foreign countries getting bio terrorist and smuggling charges. It's actually much more serious abroad than it is in the states, and unfortunately, that extends to the US because of our international relations. Shipping to China (in particular) is a big problem.
It's not about losing our [censored] at members of our community. It's about having a united front and informing people for the wider health of the hobby. There's no malice in this thread, it's one person trying to take care of their pets. I'd say best practices would be to talk to the user, inform them about legality, gauge their interest in abiding the laws and remove them if they insist on propping up illegal smugglers with their purchases. If you've sold ants legally and then found those ants making rounds on Chinese markets, you've been victim to the same thing the original poster has done.
Regardless of how some members of the community feel about my stance on this, the people most passionate about the hobby are the ones who are going to be willing to risk more. Not every person that buys illegally is an opportunist or doesn't care about the hobby. Fighting like this doesn't bring understanding, it just separates people into camps.