Why are Chinese exchanges still considered Tier 2?
I'm curious to understand why Chinese cryptocurrency exchanges continue to be classified as Tier 2 despite their significant market share and user base. Are there specific regulatory, technological, or security factors that prevent them from achieving a higher tier? It seems they've made strides in recent years, yet the classification remains unchanged. Could you elaborate on the criteria used to determine these tiers and why Chinese exchanges specifically have yet to move up?