There are many swap platforms (Instant exchanges) that do not require registration. Any altcoin can be converted into Bitcoin and then mixed using Mixer.
With regard to these so-called instant exchanges, we should take everything they say with a grain of salt
[usually, they do have a part in their TOS that mentions they could still ask for other details (e.g. source of funds, KYC documents and etc...) and this happens more often than most would think (especially if one part of the equation involves mixers)]!
Thanks for sharing your thoughts on instant exchanges. However, this doesn't mean that all instant exchanges are untrustworthy. I agree with that we need to be cautious as they may not always be completely transparent. It's important to research and choose a reputable exchange that prioritizes security and compliance. By doing so, I think we can minimize the risks. The use of these platforms also remains limited, since it is not possible to risk sending large sums under any circumstances.