It never appears to save the preference on my end. That would be nice.
Also just to bring this up again in the appropriate place.
I would like to see a "Quantitative Interview questions/answers" section. I understand your point of wanting critical mass before the section is created, but I think there's a catch-22 here.
I don't think people like going through the thread to find the question that is being talked about, or even going back and answering unanswered questions. Who wants to trudge through 14+ pages of replies?
Hence there is less traffic in that thread because of it's format, I believe.
So we can't create a section because there is no traffic, but there is no traffic because there is no "nice" section :D
How about we try it out, then delete/merge into one thread if it doesn't work in a subsequent forum update?