Are those the millions of housewives/househusbands that willingly share the most intimate details/pictures on facebook/twitter/co with the whole world to see? Do you really think strong anonymity is a big issue for them?

And as was said before: strong anonymity is absolutely possible with Bitcoin and it would not be too hard to build a privacy-focused client. The demand just is not that great - not even within the Bitcoin community it seems, although this community is probably much more privacy-aware than the average. Having said that, I'm also convinced that a privacy-focused client is bound to appear at some point!