If they are fudging the truth, they just made your decision really easy: Don't work there. Employers need to learn to be candid and straight forward about their software development issues because if they are not even willing to recognize them, how can we hope to fix them?
The truth is we won't because they don't want us to! One can only wonder what kind of leadership they have and, bad politics they have it they are not even willing to increase productivity in their company with virtually no real long term costs. Even a wholly selfish person would realize this! You also need to realize this will be a detriment to your own potential and in turn those around you.
If they are dishonest about what they are hiring you for, what else do you think they might decide to hide?
Look at it this way: How does it affect your moral and personal well-being knowing you've been lied to or tricked after getting hired on? It is much better to ask hard questions and trust your intuition before getting hired. When they lie on the Joel Test, or do not even show the Joel Test on their posting it is an awesome way to take a stupid companies money, give it to a good company, and let us know not to work there :)
Policing would be a waste of a good companies time. Allow these companies to deface themselves.