That was a completely unnecessary step from Steam. If you as service aren't scooping up any sales through Bitcoin, you're not paying any fees at all. Worst case scenario is less people making use of Bitcoin due to the fees, so with the aforementioned in mind, they only lose out by doing this. Another thing they mentioned is the volatility, which is an utter bit of nonsense. BitPay converts their Bitcoin sales into fiat, where Steam itself has no exposure to the volatility at all, so what is exactly their risk in this matter? Bitcoin's market has always been volatile, and now suddenly it has started to become a problem? I think there is more to it than they let us know. I wonder if their stance on this matter will change once LN gets publicly launched.