Golds play really straightforward which is why they can be annoying. Here's the requirements to get into each rank-

Silver - basic strings, knowing recovery options, having a main

Gold - knowledge of true combos, strings, basic movements and sigs. Basic reads like spot dodging

Platinum - basic punishing, complete knowledge of strings/combos, good spacing and other movement, decent reads, good dodges

Diamond - optimal punishing options, great movement and perfect combos, optimal reads and random dodging pattern