User blog comment:Mak23686/About the message walls/@comment-3999180-20120204201855/@comment-3503487-20120208023811

I think they're more personal, not private. When you TP message someone, it's obviously just for that person, and few people join into your conversation. Walls make it easier to join convos, a pro and a con for me. Talk pages are actually easier for you to see past posts.