According to the Area51 site for CG, we need some help to get out of beta. Currently, the site averages 1.4-1.5 questions per day, quite far from the necessary 15.
In an effort to help, I'm personally trying to think of as many questions as I can, but I don't want to spam everyone with sub-par questions or those that may be too similar to others. However, I did post two questions that were related, but different enough that it warranted two separate posts. I had in my head a few more along the same lines, but with relatively lackluster response, I decided to hold off.
Generally speaking (with regard to the beta status of the site), which should be the deciding factor in posting questions in a series: a high number of simply satisfactory posts (not something that would get no response or votes, but also not stellar), or a lower number of very high quality posts?