Thanks for bringing it. It says "each type" which should mean that neymarjr12 can create a type 2 since he has not created a type 2 yet.
Yes.
But someone else with linking archived proof by creating a thread can create a new flag type if anyone feels the necessity.
I would advise against that. Type 2/3 flags should be created by someone who is a party to the contract and suffered damages.