I suspect that it, like the "sinus" mentioned elsewhere, may well be a result of the scene (at least at the start) being dominated by people natively speaking Northern European Germanic languages.
replyI started learning English about 43 years ago, and I still struggle with when words are combined or separate in English because it largely follows no logic while in Norwegian it carries meaning.
The demoscene is full of funny-English words — ”compo”, ”graphician”…
replyHow come we(you?) decided it can be either, given everyone and their dog writes "demoscene" all across the scene?
reply writes "demoscene" all across the scene
^^^^^^^^^ ^^^^^^^^^
"demoscene" comes from demo + scene. "demo scene" and "demoscene" refer to the same thing. The latter is a more common spelling. We can also write "the scene" (meaning the demoscene) and "sceners" (meaning demosceners) and it's fully understood.
Alternative spellings of words don't have to be dominant or even popular, they just have to be understood. If you try and force someone to use a specific spelling even if you understood them with the spelling they used, that is somewhat jerk-like.
https://en.wiktionary.org/wiki/demo_scene
Alternative spelling of demoscene.
The informal computer art subculture that produces and watches demos (audiovisual computer programs).
Etymology: from demo + scene
A participant in the demoscene
A member of a scene, especially the demoscene