Terraforming Venus: Why Nobody Discusses It?

[rootone]

Yes, I said 'hydrogen as such' - meaning free gasious hydrogen isn't necessary for life.
It is essential though in the form of water molecules, bonded with oxygen.
There are other chemicals important for life which require hydrogen bound in a molecular form as well.
Sugars and amino acids for example.

 

[Stephanus]

The Outer Space Treaty says it's not OK.

I didn't know there was such treaty. I only know Moon and Antartica.

Lack of hydrogen as such wouldn't bother a micro organism, lack of water would...

There is no water without hydrogen.

I don't mean to be a med expert here, but there are some (micro) organisms that can live "without" water. But of course they would get the H and O (in H₂O) from somewhere else.