No, I'm not recommending people stay with XP. But equally, if they want to, what's the issue? It won't affect me one way or the other. The world won't end because someone goes online with an XP box after 8-4-14. (Well, it might for him, if he hasn't got any security at all).
EDIT: While doing one of my IT courses, we set an XP Pro (no SP) machine up without any security and connected it to the internet. Didn't do anything with it, just hooked it up and opened IE6. It was hit within minutes, and crippled into unusability within an hour. We re-imaged it, installed SP3 and an AV program and did the same thing. It was still clean at the end of the week. But I'm constantly amazed by the number of machines I see with either no protection, or it's so hopelessly out-of-date that it's useless, or, worst of all, it's not even turned on. And yet who's the first to cop the blame when they get a 'nasty'? Yep, Microsoft.