Jon Udell - Sufficiently simple technology:

"When I ran into trouble with Rubric, and couldn't find the SQL INSERT INTO statement anywhere in the code, I knew I'd have to learn about Class::DBI in order to proceed. Result: I punted.

Scuttle is written in PHP, and doesn't use any such abstraction layer. When I ran into trouble with Scuttle, it was easy to find the problem. Result: I'm using Scuttle."