on my laptop i don't mind it. On my android phone its perfect (automatically reduced column width is awesome on a double tap zoom).
if I may suggest, can you input an option to have either recently updated or watched threads available? Meaning, if i choose to watch a thread that will show in the column first, but if I don't have any threads watched defaulted to recently updated.
Just a thought...
I may not have a lot to say but it doesn't mean I don't listen.