Third link is still fairly new, I wouldn't use that as proof. But other than that, I can't find any trades or offers that are newer than a month other than the ones you provided. Still looking, but staying neutral for now.

Too sad to see your own trade as proof D:

But can I haz more proof for 22 key suggestion?

I think no one wants to buy any Christmas related stuff currently and everyone is thinking they will buy after Christmas when the prices hit rock bottom. They have become like a cancer. Its not that there aren't any 20+ offer...in fact there are no offers at all. Even if I lower the B/O to 20 keys I doubt many will be interested. The only way you can sell these now are to a bunch of people who really appreciate these weapons or in quicksell so they can resell it for more profit. Alas, 85% of the crowd is belongs to latter category.

Anyway provide proof that these can sell for 22 key range and I will upvote it. If I am not getting close to 24 keys on my minigun I am more than glad to keep rather than part.