Hello!
Many people are complaining that the gold limit should be exceeded to let’s say 999,999,999 but my idea it to make a special vendor who will provide two services.
The first one will allow players to change their gold for special tokens which will be tradeable. Let’s say 1M for 1 token.
The second service will allow players to swap their coins back to gold for the same rate.
So let’s say that someone is selling a rare vanity for 1B. The buyer will change his gold to tokens (99M/99tokens at a time) and then put stack of x999 tokens into the trade window and use them to complete the trade. The buyer will then be able to redeem the tokens for gold.