We could just ignore anyone asking same question again but this does make situation worse.

1. Anyone asking same question again makes situation harder for people who come next searching for same answer. Next person must read more threads and may end giving up and asking the question yet again making situation even worse. I think we are already at this stage now :-)

2. Also when such threads are ignored by those who could provide correct answer the thread grows anyway by answers from other clueless people and confuse those who come next even more. Example - there are several threads about USB host mode. I have personally answered in several such ones that host mode with OS2007 based N800 is possible and no, you don't need extra power for low power devices and still several similar threads popped up with people still claiming this is not possible or telling other people that they need extra power, etc.

It is quite frustrating to see this forum degenerate into mess. And you are doing it to yourself.

Yes, this is still valid choice. The helpful ones can simply go away.