Question about Contributor Level

Yes,I think so :|

Well, can happen. If we have any say in it, I'd say it will be removed from the giveaway list (as it's free) and can preserve it's last, non-0 price for the sake of older giveaways.

yep will be zero.
check dota2 old GA

This is the reason why they always have random thing 0P. They heavily count on SteamAPI to get price real-time. They should have a database for it...

I agree the value should be the one at the time of giveaway creation. There are downsides and it's been discussed before, but I still think it makes more sense than the current system.

yes. when it happens submit a support ticket to change it manually.