I just found there is no last post link/icon in thread list. How to add it or link it to the last post date like in modern forum engines? It's available in default theme but can't find template to edit and copy that link to your theme

That's because it isn't included in MyBB 1.9, and as the theme is designed to mimic 1.9, it isn't included by default.

If you want to include it, you'll need to edit template forumdisplay_thread and include the following before ($lastposterlink}

Code:

<a href="{$thread['lastpostlink']}">{$lang->lastpost}</a>:

Thanks a lot! Changed it to lastpostdate and now it's even better than default text link.