Mixers help protect financial privacy which matters to a lot of people. Thing is, some use them for illegal stuff and that's a problem.
Yes, it is the best technology to keep it a secret. But the bad thing is that a lot of criminals use it and that makes Mixer get a bad look.
The industry should focus on building privacy tools that stay legal but still shield users. Better exchange security could also stop hacks before they even start.
The development conditions are good but it is contrary to the security system. Therefore, I see that the Mixer campaign was stopped on this forum. I think this is normal, when something is banned and it causes harm then we have to remove it. In contrast to exchanges, they must obey the government. They create privacy, but as long as it does not harm the government, it does not matter. But if the exchange is invited to cooperate on a certain issue, then they must also be cooperative. Because they are in a government and they have to obey the rules, otherwise they will get new problems from the government.