There is some merit to your point, but I don't completely agree. STEEM does have built in inflation. At around 9% per year. So supply is increasing. But in a predictable way, that everyone knows in advance. After all, the rewards pool has to come from somewhere.
But to compare it against USD fiat is slandering STEEM. The printing presses for USD are turned on and off in an arbitrary way, and the amount of printing of USD is criminally large. More than double over last 10 years.
Hmm, I suppose I was referring to Steem's performance over the last six months, not it's actual capabilities. Over the last six months, it sort of kinda just averaged back out to around a little over a dollar, hence the opinion.
I really do hope it gets better, because I too believe in it, but so many people are always selling it, and with such a large supply, that it is difficult for it to keep any value in my opinion.