These two go nuts when they have credit and then max out and enter a state of severe withdrawal (there are various sorts of issues underlying this addiction, such as money from him is seen as an expression of love by her). They literally have no control and don't even think of living within their means - for example, they bought two puppies from pet stores for close to $2000 when they could have got them for much less elsewhere. One of the puppies got out of the yard and didn't come back (another story I'll skip for them moment), so they bought another one for $2000. And the woman liked a particular brand of expensive designer crystal, so the man went out and bought her three clocks with this crystal in them, each being at least a few hundred bucks. (Funny aside - this man's job, which he excels at, is promoting credit cards).
They ended up going on a delirious $70,000 CC spending spree over the course of two years - quite spectacular to witness, actually - thinking they could just declare a second bankruptcy within ten years, but it didn't work out. So now they are flat broke and can't even afford groceries. Being around them is like being around a person is in withdrawal from alcohol or drugs, but even worse because they are in so much debt that they are denied their $$ fix for a long time and the withdrawals don't pass in the course of a week or so.
These are the types of folks featured on Till Debt Due Us Part (well maybe not that bad, but some are heading in that direction).
But there is a difference between the people I described and the posters in this thread who are looking to reduce debt. Sometimes people accrue debt due to circumstances beyond their control and sometimes people who are a bit too careless with credit cards get a wake up call and learn their lesson before they have to declare bankruptcy or be referred to 'Till Debt Do Us Part'