That's why they're making an app and a mobile friendly version. Even with an app or mobile friendly version it will have its limitations, but I don't think anyone is deluding themselves that it will ever replace using a proper computer but some forums work really well on a phone.
I guess if you try to surf the web on phone from yesteryear it's obviously a problem. But not everyone wants to get their laptop out or sit in front of their PC to look at the web. Expand your mind a bit ol' timer. It's called progress.