It will be, of course, only an option. And even not an option, but EXTENSION to "user info in posts" feature which miniBB currently has. We will just make separated fields in user's profile - "posts_amount" and "topics_amount", which will, first of all, increase the speed of the user info processing page. Using "user info in posts", you will be able to make these values appearing in each post.

so is this option available in the latest version?

Yes, it is.

1. Add in setup_options.php:
$userInfoInPosts=array($dbUserSheme['num_posts'][1]);

2. Add in main_posts_cell.html:
{$userInfo_num_posts[$poster_id]}

_Marco

Thanks Marco! (will check if it works :)