You are not going to be given an exception, you are not special or unique, you are on the same footing as everyone else.
The only reason your karma went so high previously was because the negative rates were only being treated as part of a rate, and you needed to get many from many different people to get even lose 1 karma, now a lot of that has been removed and they have the same effect as a positive rate.
I would advise making more topics that people find interesting, instead of posting things people don't like.
That is the only 4 million dollar transaction on your log. Outside of that you've done a ton of blackjack and I see all your money reasonably accounted for?
Blackjack doesn't count as a bug when it takes all your cash.
If you have had funds removed from your account by the Multi Hunter, please read the following topics (topic 1 and topic 2) before posting a bug report (and post that you have read them too please), we want to make sure that everyone is aware of what is happening and why before we look into individual accounts for folks who have an issue with a deduction.
Yes, you just need to check your inventory and see what is new.
In the future there may be a change made so that you cannot walk over him too fast and miss seeing what he gives you, but I am not sure if that is guaranteed to be added. Be very careful to not keep walking when you interact with Santa until you see what you have gotten.