It's a bit like 'Polite Notice' - I'll decide how polite your notice is myself thanks!
Even if one word is desired, wouldn't 'ecosystem' be so much better? (I realise that's a corruption of its meaning, but it's a now widespread meaning anyway.)
Isn’t the point of “polite notice” that it looks very much like “police notice” when glancing quickly? That is certainly how it is abused by horse riders on the road around here.
Oh, maybe. I was thinking of 'please refrain from smoking outside the designated area' and similar, I thought it was a (crap) attempt at making the signage politer and less like an order (which of course it was) - but then I was a young naif when designated indoor smoking areas where allowed anyway!
