With HTTPS alone, I can assure you that HN is, indeed, the recipient/end. If you post something like a PGP-encrypted message on HN, now you've got a situation where HN is no longer a recipient/end.
I think the better point to make is that we all collectively agree to refrain from using the term "end" (as in E2EE) in situations like the former, as it's misleading despite being accurate; please only use it for the latter.
Messenger like the telegram are something different than sites like HN.
I am aware that I send my messages to HN, they are not forwarded to you but you open the HN page to read my response.
HN is more like a message board with message hierarchy.
The communication is public, the transmission path is encrypted.
I think the better point to make is that we all collectively agree to refrain from using the term "end" (as in E2EE) in situations like the former, as it's misleading despite being accurate; please only use it for the latter.