@Jan, it would be great to automatically receive the steam key when purchasing on the website.
People who bought PM NG on this website (like me) are completely left cut-off from the PM NG Steam Community Hub — can’t create guides, add screenshots, etc. Unfortunately, Steam enforces a strict policy that only allows product-purchasers to actively contribute to a product Community Hub.
I’m not sure how this business of Steam keys works in terms of burden on your side, but allowing all PM NG users to redeem a Steam key would empower them to make the PMNG Steam Hub grow — which, in turn, would increase the product visibility and popularity on Steam.
Steam Hubs often provide guides in many different languages, something which is beyond the scopes of this forum (where English is the standard language of reference, and having threads in Russian or Japanese would feel odd). So, undoubtedly the Steam Hub could be a valuable PMNG asset when it comes to internationalization.