It all comes back to the definition of "privacy" and whether it is reasonable to expect that information, once posted to a publicly accessible forum, can be considered "private".
Is it even reasonable to expect information that isn't transmitted via some method which features end-to-end encryption to remain private?
Maybe I'm just old-school, but I've lived my life by the philosophy: "if it is private, don't post it" Frankly, this should be the first thing we teach kids about the internet, IMHO.
If a packet is traversing an ISP's network the ISP should have to know where it is coming from and where it is going, right? So even if you "encrypt the first hello" packet, the ISP would still know where it was routed, right?
I'll freely admit I have only a very basic (and likely outdated) understanding of IP networking, but I don't see how this protects my browsing habits from my ISP. Even if they can't understand my "hello" to lemmy.ml, they still know I'm talking to lemmy.ml's IP address about something.
What am I missing?