HI there,
Currently we do not sort the album by randomness. However, for some reason if you really need to sort by random, you can edit the file at 'JOOMLA/administrator/components/com_easysocial/models/albums.php' and edit below code at line 366:
$orderby .= ' order by ' . $ordering . ' ' . $direction;
and replace the above with:
$orderby .= ' order by rand()';
The 'rand()' is a special function in MySQL to randomly return your database records. However, please take note this rand() is extremely heavy on the performance impact if your site has alot of albums records or the query is very complicated.
It's your call to use this rand() or not
Hope this help and have a nice day.