The chat boxes on news stories seems to have all the proper controls showing for Chrome now, but the forum ones still don't.
It would also be great if there was a mobile specific version of the forums, whereby everything is formatted to fit on a mobile browser screen very well. Here's an example of a forum that does that:
http://www.forum.org/forum/index.php?act=idx
(Sorry that most of that website is actually in Chinese, it's the only site I could think of off the top of my head. But it does show a forum can be formatted very nicely for a mobile screen, no need to zoom in or zoom).