Bitcoin has a 21 million coin cap, and a deflating inflation rate... Steem runs at 100% inflation per annum into perpetuity..
The comparison would be more correct if I said, They found a gold reserve the size of all gold ever mined...and then found another one the year after...
No that would simply lower the long term cost of gold since its demand would drop to the floor. If they found a comet made of gold tomorrow that could be reasonably and cheaply mined and return back to earth in a reasonable amount of time, the value of gold would start to decline since the supply dramatically increased.
This is neither gold, nor is it a fixed supply side. But the information in all directions is near perfect, and the liquid supply is throttled based on user dynamics. This makes for a far more stable price and much more predictable market dynamics for all.
Basically, whales have a harder time controlling the market.