What's good in RCS? As I understand, they are cleartext, sender and receiver number are also cleartext and go through mobile telco which means they can charge for every message and the government can see everything. Looks like garbage technology to me.

Also the idea that anyone can send messages to anyone without permission is ridiculous. Made specially for spammers and scammers.

If phone makers want an universal message exchange standard, it should be encrypted and completely ignore telecoms interests.