Sorry I have lost my topic about that issue.
I have installed the last version of SEO/sitemap and still have NO meta in ANY page on ALL my sites
No description, no keywords, wallou !
Moreover, I see that GOogle explore all the admin page and WP directory.
It says it is allowed to do this by robots.txt but i have NO robots.txt in my site !!!
I notice too another referencement problem. The keywords generated by google are essentially those of WP or the theme as avatar, groups, activity, blogs, admin, etc...
SEO last version
PS : site with buddypress must have the buddypress SEO i suppose ?