I have checked the webpages of the 4 recently added mixers, and all of them look cloudfare-related.

1. webmixer.io and whir.to show the standard cloudfare's anti-TOR page, the traffic is definitely MITMed by cloudfare.

2. whirlwind.money and puremixer.io don't show the cloudfare's anti-TOR page, but the IP addresses these domain names point to still belong to cloudfare, which raises the same suspects as in part 2 of my previous message.

Summarizing, there is only one mixer in the list left that does not show signs of the traffic being MITMed by a "ddos protection system", anonymixer.com, but now it looks dead, neiter the clearnet page nor the tor page works. All alive mixers show weaker or stronger sings of MITM.

By the way, the link to anonymixer.com's thread at this forum in the opening post does not really link anywhere. It's just plain text, not a real link.