I am skeptical about flat earth theory, however I've noticed that flat earthers are not generally dismissive or belligerent about evidence. The lot of them would like to see contrary evidence if only more experimentation were permitted. What the movement contributes is the fact that they open public eyes to how restricted we really are.
If we can't go to space, then why not the alleged frozen wasteland of Antarctica? Is it right that any single country should have military primacy by calling it their space? If flat earthers are wrong, proving them wrong would be a matter of exploring arrogantly guarded secrets.
What I care is the push for exposure regardless.