M.SE has a lot more traffic than W|C, but unfortunately it's not suitable for posting surveys. Meta has much less traffic than the main site. Mostly it is the regulars who visit. So the sample will certainly be biased. This is why I originally chose W|C to post the survey.
For the second round, it seems like a good idea to also advertise on Meta, so I did.
Now idea: What might be better is placing an actual community ad (didn't think of this before). That will show on the main M.SE site!
