For me the issue with slack isn't that it's always-on (because as you said, you can log off, or turn notifications off), it's that it's an unstructured forum fo

For me the issue with slack isn't that it's always-on (because as you said, you can log off, or turn notifications off), it's that it's an unstructured forum for ideas. I think it foments shallow commenting/debating over deeper conversations and planning. Of course all these problems can be fixed with "culture" but I think the tool itself rewards instant-replies, since conversations quickly move into the past, where "out of sight is out of mind".