I disagree. I think it's nothing but a good idea compared to its current state, for the following reasons:
- IPC in userspace is insecure, and currently easily subverted by rootkits.
- When a system is under heavy load, the dbus daemon becomes a choke point for scheduling. "Spammy" processes can prevent messages from reaching higher priority processes.
- It is a lifesaver for embedded devices with poor multitasking capabilities. Think about ucLinux.
- It's not for everyone. It's like PF_RING for packet capturing.
- It makes sense not only for performance, but also reliability.
- Even though DBus can be improved in several other aspects, I think it's nice that someone sat down and wrote this instead of bikeshedding on some website.
