This feature allows to show the result of a poll when using the LIST view. It can be enabled with the option "Show results in LIST" under "General Settings" or by using "plugin.tx_jkpoll_pi1.show_results_in_list = 1". Perhaps you should use a special template for this view. An example for such a template is included as "typo3conf/ext/jk_poll/res/jk_poll_results_list.tmpl". The result may look like this.