4chan rejects posting from Tor, but accepts browsing from it.
There are other anonymity networks that it doesn't filters out as well. But in principle, it does not allow posting from anonymity networks.
4chan is also quite mainstream and one of the largest websites on the internet, certainly larger than Hacker News. Similar Web ranks it around 800 world wide, but it's probably even higher, given that it's split into two domains that remain separate for advertisement reasons.
There are other anonymity networks that it doesn't filters out as well. But in principle, it does not allow posting from anonymity networks.
4chan is also quite mainstream and one of the largest websites on the internet, certainly larger than Hacker News. Similar Web ranks it around 800 world wide, but it's probably even higher, given that it's split into two domains that remain separate for advertisement reasons.