Bless his noodly appendage

You are not allowed to distribute unreal source. From their FAQ:

Unreal Engine licensees are permitted to post engine code snippets (up to 30 lines) in a public forum, but only for the purpose of discussing the content of the snippet

Link to arntzen’s technical description. https://github.com/HansKristian-Work/vkd3d-proton/pull/1694

Why is it a scam? For clean showers and toilets I’m willing to pay an euro