I think Restless is urging the less savvy.
Using XP after its sell by date has expired will be like owning a classic car. It will run just fine if you know what you are doing, have an imperial spanner set, axle stands, a haynes manual and access to spares..otherwise it's just going to break down and cause you no end of problems.
Or you could just put your hand in your pocket and pay someone to keep it on the road...oh wait..you already have, you just didn't know about it
Government pays Microsoft £5.5m to extend Windows XP support - Telegraph