I already opened an issue on the Github page of the Public Suffix List Project(link) but i’m not sure if it’s the correct place for this to be handled.
Copy of the issue text:
The letsencrypt project is using the public suffix list while checking for accidental and intentional abuse.
The result is that this prevents all users of the FreeDNS project from getting a free certificate due to said limits.
The problem is that we’re talking about a list of ~90k domains which is being constantly updated with some being marked as ‘private’(see http://freedns.afraid.org/domain/registry/). The addition of the public ones is still valid as they are in fact publicly used suffixes which are open for registration(e.g. mooo.com with ~400k subdomains).
Not adding them would prevent ~8 million sites from using letsencrypt.
The sheer number of domains and their fluctuation would require automation. I’m already in contact with one of their admins(firstname.lastname@example.org) and they would provide an export link for this purpose.
Let me know what you think.