Not who is going to decide all of this, but what.
Let's be professional about this. Forget the stone age way of counting by hand: Let an application sort thru it.
Application Parameters:
1) Select threads which captured a certain minimum number of "Up-votes".
=OR=
2) Decide to keep threads based on weather they went "Hot" or not.
=OR=
3) Choose threads beyond a thresh-hold perimeter of activity, for example - active for one or two weeks minimum.
I rather like the first one, keeping only the threads which had the upper 25 percentile of total number of "Up-votes", which would be a good indicator of the quality of the responses and advice. A simple application to analyze the database for such threads would be a nice project assigned by staff here at game dev for a volunteer in the Mods or Staff groups. If they can't find someone to volunteer then pay a firm to handle it, is my recommendation. Of course, if they wanted to be fanatical about it, then they could choose all three parameters.
Feasibility: High!
A college student who completed a full year of programming classes could do this.