The growth chart of WorldConnect is very interesting. It shows a steady, almost linear growth of the database. A closer look however shows

0 - 10 Million 60 days
10 - 20 Million 47 days
20 - 30 Million 72 days
30 - 40 Million 122 days
40 - 50 Million 76 days
50 - 60 Million 128 days

All though there is no relation to genealogy here, it seems that a site dedicated to presentation of research would use more care in presentation of statistics.