No but Joomla does. It'd be good if JComments cleared the cache on the commented page or had an ajax method to update the comments list after load.
As Joomla has no method to clear cache for certain page the JComments do not include comment's list code into page's source and loads comments list dynamically using JS code (you can look at tpl_index.php and found there anti-cache hack). BTW, many users ask me to include comments text into page source and in upcomming version I've added option to manage this behavior.