Cryptopia is far from being a top cryptoexchange. Of course, this is better than all new little-known exchanges, but it's very far from the Bittrex level, not to mention Binance. XDNA is, what to strive for!
These exchanges are the best because the first and a lot of people use them. For example, I do not like all exchanges from the top 10, but only a few. So it's a moot point.
The exchanges are also changing their ratings. Last year one of the flagships of the market was the Polonix Exchange. Where is she now? Who remembers this? And Cryptopia has always been on a firm assessment of "good." I think that the XDNA project made the right choice, which came out on the Cryptopia crypto exchange.