Are you sure that's not a technical problem with your browser? Works fine here.
The reply button is at the bottom of each thread-- there's a series of "reply, watch, notify, mark unread, etc." or if you just want to add to the end of the thread, there's a quick reply box at the bottom. If you press "Quote" next to the individual post, it usually pours the quoted text right into the Quick Reply button. It's possible, because this is a little gimmicky and script-intensive, it works strangely on edge-case browsers or if you have JavaScript disabled.
I find the Godwin-baiting title sort of odd. Do remember this is not the only comparable forum in town-- if you don't like it here, there's always Reddit. There were some big issues about a year back with the site being hacked and several panicked database and software tweaks, so the forum may not be what you remember. However, the operators do seem to typically be trying to keep a reasonable level of discourse and community going on.