Naa, I tested Firefox (no addons) IE, Pale Moon, Cyberfox and Chrome and it takes at least 45 seconds to a minute to post. Here are my speedtest results.
This test is over WIFI with a @MB Comcast connection. Server test was in Kansas where Anandtech is located at.
I don't see how other people's post's are snappy. It only makes sense that a 4,000 page thread would be slow. Most forums that have a thread this long would look it.
I'm going to try something in the router and see what happens and test with another computer.