Try to use Opera Mini Browser on your phone. It will give you good experience, bud. Much better, the text will fit on your screen as well when you zoom in or zoom out, so you don't need to slide your screen. Or if you using Iphone try the Safari Browser.
How do you enable this feature? I just installed it and mine looks the same as in Firefox and Chrome.
Edit: I'm also getting ads from time to time while using this browser...
I heard they are working on new forum software and really hope they have responsive function in mind.
They do.