I set up basicswap dex but the XMR/BCH liquidity is pretty low there. Do you know which coins on there have the highest volume? It would be nice if you could see the whole order book and not only the coins you have enabled.
So has there been another stress test where TX volume reached higher than 500k? I am not aware of any fixes that have been made to fix the TX propagation and block sync failures that happened on the stressnet when volume went over ~300k.
I have a feeling the current Monero node implementation is at its life's end that is why the Rust node work has been started.
The combinations are close to infinite. It would take enormous resources to get even close to likelihood of identifying correlations.
For the average person it is more than enough privacy. Given the other benefits of BCH it is just the better choice for mass adoption. There will always be a niche use case for Monero but it cannot serve as the world's money, IMO.