Credits currently available for purchase:
11 credits at 7000 gold per credit.
9 credits at 7199 gold per credit.
258 credits at 7200 gold per credit.
63 credits at 7405 gold per credit.
13 credits at 9999 gold per credit.
15 credits at 15000 gold per credit.
1 credits at 40000 gold per credit.
82 credits at 50000 gold per credit.
1 credits at 59985 gold per credit.
1 credits at 63000 gold per credit.
This is some serious no bueno, and I'm saying it as a person who doesn't usually buy credits off the IG market. Actually I'm usually the one selling for a quick buck. The only times we've seen the CFS prices dip to anything 'reasonable' was when there was a gold auction. And even then that was only temporary as once all the bids resolved, all the losing bids started buying their credits back. I understand that IRE will probably never start selling IG credits as a means of establishing a baseline credit price because that would hurt their cash revenue, however I think some sort of incentive-based goldsink (as opposed to the current mostly optional, largely vanity projects) are in order.
Gold for SoW items
This actually technically exists, if you consider that crowns are a ship trade item. In return for some 70-80k gold and your precious sailing time, you can get a Mayan Crown. And that Mayan Crown can be used to purchase SoW stuff. there's really no reason why a direct conversion can't be done. At an exchange rate of say 100k gold per Crown, you can easily purchase those stat boosting elixirs and any number of largely vanity items. For sure this'll make the current price of Mayan Crowns depreciate considerably, but bearing in mind that those SoW items are only worth like a measly (1)5cr when traded in, this actually brings the IG price of the Crowns a little closer to reality.
Using gold to discount OOC credit purchase
This probably sounds a bit more outrageous, but you could even encourage people to buy more credits. Iron Elite gives a 10% bonus on credit purchases. What if for a given amount of gold, you could buy a token or something that gives you a 5% discount that stacks with Iron Elite, or up to a 20% discount. It also (inadvertently) rewards people for time spent active and productive in game as well.
Gold for Artefact Upgrade Tokens
Some people hoard credits for the artefact upgrade. What can be done is to sell Artefact Upgrade Token packages that are priced based on the average credit sale price. It then becomes in the player's best interests (however rich they are) to keep the credit market prices down. Ultimately buying the tokens will need to be cheaper than buying the credits directly, but the lower the market price is, the cheaper the upgrade tokens become. Upgraded artefacts can be traded in as per normal, given that the returned credits are bound, they have no bearing on the credit market proper.