The Snapchat has a word-filter suggestion makes most sense. But then again Cloudflare is very popular on the Internet as the cheap and well-known MITM anti-DDOS tool.
I haven’t read much about i2p, but I wouldn’t be surprised if the government has their paws in there too.
You will have to trust something if you want to communicate, there’s also GNUnet, ZeroNet, DeltaChat, and probably a lot more.