At least in the Open Source/Open Microblog world:

Kinda funny how my quotes is complaining about what a recent Bazaar udate did to my command prompt. But, I stand by my statement: what it did is not cool at all.
Posted by Greg at 12:08 am on July 18th, 2008.
Categories: Uncategorized. Tags: freedom, news, ubuntu.
Totally agree. I found the offending prompt shell-script and promptly killed it.
Posted by Craig Maloney on July 18th, 2008.
Ohh, and I thought I fcked it up. Any way to disable it?
Posted by Vadim P. on July 18th, 2008.
Vadium P-
Yes, you can fix it. I found this bug about it (it is a known issue, and will be fixed by the bzr devs):
https://bugs.launchpad.net/bzr/+bug/249452
Basically, remove the “/etc/bash_completion.d/bzrbashprompt.sh” file. I just backed it up to another directory so I could look at it at my leisure.
Hope this helps.
Posted by Greg on July 18th, 2008.
Thanks, that helped. I also removed the bzr testing PPA I was using not to get any future suprises!
Posted by Vadim P. on July 19th, 2008.
Vadium- me too! ;)
I just needed it for 5-a-day a while ago.
Posted by Greg on July 19th, 2008.