I don't think folks would add a gateway if they haven't been approved for a block.

Well, actually they do. The problem is that the visitors of the portal do not know at all what the whole concept of the IPIP tunnel mesh looks like, how it is relevant within AMPRnet, and that it is only one of the options for getting connected.

As there is no walk-through explanation of concepts like a registered subnet, a gateway, the resulting IPIP tunnel mesh, etc, people just blindly click on menu items and fill out forms.

Then they have a gateway but the still don't understand how that all works. So they close the site and continue to look elsewhere for information, and when they find it they never come back to delete what they created.

That is why it is good to remove that crud, but also it would be good to have some more explanatory text and/or pointers to where that can be found. And some warnings that this is not a system to voluntarily register some information about one's station, but that it is actually used for something and that you can actually break things by entering information.

(of course we should strive for a situation where one cannot break the network for other users, but still one could break the routing of one's own subnet)

Rob