[compressedgas]

The week of 02-23 to 03-01 had 5033 story posts that aren't dead or deleted from 3298 different users. Of these 1146 users have 500 or more karma. Of these 1548 were created over 5 years ago. Of these 966 users have both 500 or more karma and have created their account over 5 years ago.

Your filter would reduce the number of posts to 2141 posts by 966 users from 5033 posts by 3298 users.