I'm not a fan of "social" tools with a "public-activity-by-default" mode. What I read and bookmark is by default intensely private. I might want to share sele

I'm not a fan of "social" tools with a "public-activity-by-default" mode. What I read and bookmark is by default intensely private. I might want to share selected items, but that's on a case-by-case basis, and often with a specific individual or audience. I think you have an entirely different use case in mind, and I'm not it.