1. Each channel is a department, so you have one channel for CAD, another channel for programming, etc. For more general discussions, we have channels for those as well.
2. Rules? Ha! ... On a serious note, it's given that you use common sense. Spamming/talking out of context/interrupting the current discussion is frowned upon, although we have a #random channel for things like that.
3. 30+, according to Slack (we're a relatively new team)
4. Can't speak for my teammates, but it's been great for me. All discussion is organized by the way we formatted our channels, so you don't have confusion. And for me personally, this has been working out perfectly since I live away from my teammates and therefore cannot meet in-person frequently.
5. Can't really think of anything.
