Thanks for linking and sorry for the delay. I reviewed both of the links. In the first one, there may be some implied gatekeeping, but I understand that the purpose of the discussion was to cover self-diagnosis. Users were asked for their opinions. They weren't actively finding people to tell them they weren't autistic. The latter is what we are aiming to prevent with that rule.

For the second link, it seems like that might have been an honest question rather than gatekeeping.

We'll let those stay for now since they may help others review conversations on self-diagnosis. However, please report gatekeeping in the future. We don't want anyone here that knows they're autistic but cannot access a medical diagnosis to be further marginalized. As autistics, we've all been bullied enough.