For myself, I don't offer recommendations one way or the other.
But I do observe that there's little sign of an extrapolatable upwards slope in the numbers.
And the folks who are optimistic about Wave's technology have been saying things are imminent for nearly two decades without a break. I don't doubt if Wave finally breaks through, they will think this continuity expresses prescience. For me, it represents the opposite.
It would be more startling if a telescopist actually thinks success is something other than imminent for Wave. Instead of forever looking backwards at no demand and forwards at success just up ahead. Perhaps based upon hints and rumours or whatever.
I'd rather look for signs of a trend in Wave's reported figures. Something more than a step up. But what folks do with that information is their own business.