Be more specific with ideas

[mrmist]

In the current ideas section Ideas often get closed for not being core ideas. However, there's not really an explicit indication that the ideas should be for WordPress core. For example, some folk post ideas for WordPress.org (as a site).

I realise Ideas is due for overhaul anyway, but in the mean time it'd be good to have just a one-liner in the blurb to explain more specifically the purpose of "Ideas". Either that, or add a content section for ideas for "WordPress.org site" as we have on here.