one way to get proof that a software vendor's eating its own dogfood (in a manner of speaking)

In an attempt to get a referesher on pessimistic locking in database, YT fired off a Google search. The first result was a page (AskTom "SELECT FOR UPDATE cursors") on AskTom. An attempt to access this page got me a fairly ugly (characteristic of Oracle, really) page that sported a terse (characteristic of Oracle, again) message:

ORA-01400: cannot insert NULL into ("ASK_TOM"."WWC_ASK_QUESTION_ACCESS_LOG$"."DISPLAYID")

Just goes to show ...