Because not everyone out there, or even the majority of people, have an Internet-capable phone that

• pay additional for Internet access
• have an email account they can connect to
• have successfully connected to an email account

Because Flickr, Facebook, and most other "sharing" or "community" sites don't have any meaningful concept of "privacy of content."

Because MMS delivery can be less expensive than paying for Internet bytes

Because people out there send MMS and that, on a device that is supposedly one of Nokia's best, they disappear into nothingness, without a trace.