Joel on Software - It's Not Just Usability

http://www.joelonsoftware.com/articles/NotJustUsability.html

Joel has hit the nail on the head with his notion that designing the (computer-mediated) human-to-human interaction or interface is much more important than simply designing the computer-to-human interface — particularly when you’re writing software for human-to-human interaction, in other words, collaboration software.

I’m lacking a little substance, though, a few tricks of the trade, perhaps, over and above the already widely publicized example of showing the spam post to the spammer, but not to the rest of the world, which is definitely clever, but perhaps a little overused as an example in Joel’s articles. Some details on concrete design decisions from FogBUGZ or other applications (not necessarily Joel’s own) would be great, please.

Update: Changed “head on the nail” to “nail on the head”. See comment below.