I'm going to be reaching 2400 SCs on QF on my anniversary date (Jan 31), however, the SCs for the last flight will probably not post until Feb 1 or Feb 2 - in this case, can I stil

I'm going to be reaching 2400 SCs on QF on my anniversary date (Jan 31), however, the SCs for the last flight will probably not post until Feb 1 or Feb 2 - in this case, can I still nominate partner gold because I've reached the 2400 SC threshold? I know that the SCs will be wiped come Feb 1 so what happens in that case?

Not an issue, alansu. Provided you have achieved your SC level within the anniversary date, it won't matter that the points are posted a couple of days / post-anniversary date later. What is paramount is that the SC's are earned within the anniversary period. The posting date is largely irrelevant.

The SC's will be posted after the anniversary date and will seperately shown to be part of your 'expired' total.

Have actually just recently gone through a similar situation with a couple of 'close-call' flights. If you are still unsure or still have any doubts, simply give QFF a call and confirm that these flights have been taken.