I wasn't at the GA obviously, but from my experiences in a number of PCA churches the views expressed on that site are fairly representative of the spectrum of views in the congregation. There are those who believe women are given an un-Scripturally large role, those who believe that are given an un-Scripturally small role, and a few who are satisfied the way things are. I don't think the issue of women's work in the church is necessarily tied to the deaconess issue. While I do believe most lay members of the PCA would agree with the pro-deaconess view, I don't think the most of the comments are necessarily pushing for deaconesses as much as a broader women's ministry within the church. The two are sort of linked, but I don't think quite as closely as some think.
Interestingly, I find the role of women to be bigger in larger churches. To me this is counter-intuitive: I would think smaller churches would need women to do more work simply to make up for the lack of numbers. But almost invariably women seemed to more formally involved in larger congregations. I'm not sure why that is, but to me it highlights the gray area between what women absolutely can do within a church, and what they absolutely cannot do. Can women be administrators? How broad can their responsibility go before it becomes a position of authority? Can they lead some ministries? At what age group should they no longer teach male members? Of course there are many other similar questions - these would have been addressed with the study committee, which is why it is unfortunate that it failed - the debate will only continue, rather than be settled for good.
Member, Redeemer Presbyterian Church (PCA) - though transferring soon to a church in FL
"Come now, and let us reason together," says the Lord, "Though your sins are like scarlet, they shall be as white as snow; though they are red like crimson, they shall be as wool." - Isaiah 1:18