There is a new [Mainframes proposal](https://area51.stackexchange.com/proposals/118484/mainframes?tab=votes#tab-top) in Area 51 about to undergo a final evaluation to see if it should continue efforts towards becoming a full site:

> **[Mainframes](https://area51.stackexchange.com/proposals/118484/mainframes?tab=votes#tab-top)**  
>Proposed Q&A site for people who program, operate and want to learn more about mainframe and mainframe-specific technologies 

Please have a look at this proposal and the top example questions. We don't generally split off a subject simply to give a sub-topic its own space, but the **audience** proposing this site has curiously little participation/overlap with our existing communities.

I'm trying to determine if the proposal audience is largely *unaware* of sites like Serverfault (and related tech/programming sites) or if they feel these topics might not be a good fit on our other sites (**in either subject breadth or culturally**). I'm trying to determine the suitability of this subject for sites like Serverfault.

**Are the example questions predominantly on topic (and welcome) on Serverfault** and related sites? Or should we tap this impressive effort (~2-3 weeks to complete Definition) to create a new community?

Any feedback welcome below. Thank you.