This page isn't useful to anyone and it isn't helpful. It is worse than the alternative (i.e. Comcast just return a Page not found error).
Can you honestly say there is anyone who wants to get a search page when they type "able2know" (without the .org) instead of being taken directly to the page? And even if they did want to be taken to a search page, why wouldn't any rational person choose "Google" or "Yahoo" or any real search Engine. Anyone would want to be able to choose which search page they were sent to. Comcast doesn't even give you this choice.
You might be able to say that this isn't a big deal. But, I am not the only one who is annoyed about this.
But to say this is "helpful" is simply ridiculous. If they wanted to be helpful they would give you an option including an easy way to to turn the damn thing off completely and maybe even a way to choose a different search engine.
This is Comcast making money selling the eyeball of their customers. This is something they might be able to get away with. But, forcing people into their advertising page with no easy way to turn it off sure as hell isn't helpful to anyone.