Which prove what kind of value? Oh wait, I know. Cats pictures and yet another chat app. #Sigh
I really hope that all these overpriced startups which provide zero value and plans for "ads revenue" get what they deserve, and then we'll speak about "value" at all.
Every large number sounds impressive, don't get yourself caught in that mind-trap.
Divide the number by their employees, check earnings/winnings, subtract investments, compare to other companies and draw your conclusions again.
If I make $1000000/year, that's great. But if it takes me 1000 people to do it, that's less than $100 per person per month.