None, but that is not the point. The point is: can we use the code without hindrance in whatever plans we have now or in the future? Or is building upon the code like going into a long one-way street?

The fact that some people will use the code without giving back is secondary to that.

That is not just my opinion, because if a more liberal library comes into existence (inevitable), it will prevail.

I agree that GPL is bound to long term irrelevance due to the way most companies deal with open source.

And on that day you will miss when GNU/Linux mattered.

But hey, we will always have freeware and public domain.