It just occurred to me that, for people high in trait Openness (creativity, appreciation for ideas) it might be a good idea to figure out ASAP (eg, during initial interview) if the company is really open to new ideas or if they just they are.
Honestly I'd love to hear ways to actually interview the interviewers on things like this. I feel most of the material I read talks about how to interview candidates, but there's not much about the other way around (how to assess the company you're interviewing with?)