If you like, you can add a tweak that will indicate if the topic is a poll, even without the first column icons, and without the poll icon being set manually in the first post of the topic.
You can also set an icon for topics you have posted.
Doing what Antes posted last is close but it makes it look like the two columns have been joined, in other words, the width of the now single column is the same as the original two columns put together.
I was hoping on the width being only as wide as o...