ron, i know why you want it, but all you have said really is what YOU want it for, how it would benefit YOU...not about the person who you are fao-ing...they may not want it.
i know in the instance you cite, it could be a frustrating thing to seek clarification and they dont see it...and if its that important then yes start a new thread... but thats only one reason ....
but the cons far outweight the benefits...you are forcing someone to continue posting on something they may have no further interest in
a dedicated fao section, would inevitably turn into chat, be filled with nonsensical posts and be a prime place for attacking someone personally...
it would be filled with "fao bertie = please see my post on travel" or whatever...and i for one will look at posts as and when i please, and would be unlikely to even look at the fao section...so id likely miss anything anyway
you woulld probably even get fao posts in other sections telling people to go and look at the fao thread lol.