rijndael
Silver $$ Contributor
Unless I am mistaken the thread is about the proliferation of scam web sites and not specifically about SSL security Certificates. Even then, the permission to produce and certify certificates was controlled by, I think it was ICCN, or something like that.
ICANN, and no, they're not involved in certificates.
ICANN is responsible for allocating TLDs: .com/.net/.org/.eu/etc.
If the complaint is that TLD have exploded since the early 2010s, then yes, the complaint should be directed to them.
Certificates are issued and controlled by root CAs