Questions to ask during developer interviews

These questions are good for the most part, but I'm not so sure about the bug tracker comments. For one, on this topic the author contradicts himself:

Believe it or not, the best companies of all don't even have a bug tracker.

...

I've never seen a company that doesn't use a bug tracker, but if I ever found one, I'd be more impressed than revolted.

The only way this isn't a contradiction is if the author has never encountered some hypothetical "best company."

Furthermore, as the number of clients increases, the number of bugs coming in will also increase. And clients will file tickets for things you didn't even consider a bug -- user error, for example. When a company has a lot of tickets being filed, there's a good chance the developers can't respond to each bug right away, and that's where the tracker comes in.