zashi has no sell buttons, but people are not selling, and it's pretty straightforward when you're comfy with your money in a shielded address, you never wanna go out it's like decorating your house to be the perfect place for you to stay at all times things will change when it's going to be possible to move your shielded coins across chains and use them shielded, meaning you could also SELL them shielded that's when zec COULD go down - not necessarily tho