User blog comment:Jenburton/An Update on Message Wall/@comment-1341744-20111001135515/@comment-10532749-20111005220203

I think the name Wall here is a little confusing. The only way you can use Wall to communicate with other people is still the same as with Talk pages.

Changes were made to *ease of use*, not to the way communication works. You can't "spam" all your friends with messages on your Wall, it's exactly the same as Talk pages used to be - that is someone has to come to your own Wall to see what you wrote there.