[qpurser]

Was looking for something similar and thanks Eosian for trying to help.
I tried out you second suggestion "the fancier" once but got an error.

Database error in vBulletin 4.2.0:

Invalid SQL:
select sum(if( p.dateline >= UNIX_TIMESTAMP(DATE_ADD(CURDATE(), INTERVAL 0 DAY)), 1, 0)) posts_0_day,sum(if( p.dateline >= UNIX_TIMESTAMP(DATE_ADD(CURDATE(), INTERVAL -1 DAY)), 1, 0)) posts_1_day,sum(if( p.dateline >= UNIX_TIMESTAMP(DATE_ADD(CURDATE(), INTERVAL -7 DAY)), 1, 0)) posts_7_day ,count(*) posts_30_day from post p where p.userid =  and p.dateline >= UNIX_TIMESTAMP(DATE_ADD(CURDATE(), INTERVAL -30 DAY));

MySQL Error   : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'and p.dateline >= UNIX_TIMESTAMP(DATE_ADD(CURDATE(), INTERVAL -30 DAY))' at line 1
Error Number  : 1064