It would be great if
#1 there were a tool on my Ubuntu desktop that enable me to collect all hardware information from my machine at once and then submit it to launchpad.
#2 there was a way to reference this hardware profile when reporting bugs.

It would make the lives of bug reporters easier as:
#1 Even unskilled people could collect the info.
#2 The info would only need to be collected once. So bug reporters would not have to repeat the same steps over and over again for each HW bug they report.

It would also make the lives of bug fixers easier as:
#1 Launchpad could enable them to query each bug report for affected hardware.
#2 There would be more such information available because it is not such a pain in the ass of the bug reporters anymore.

The Process in more detail:
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Step #1: Add a GUI driven software to the Ubuntu distro which enables
users to submit their hardware information to a central database.

Step #2: Allow the users to attach the DB IDs to their launchpad
profile (multiple if needed).

Step #3: Allow the user to select which of his machines are affected.

Step #4: Allow the bug fixers to retrieve a list of affected hardware
for a bug from launchpad. Like: give me all USB chipsets of machine IDs
attached to this bug.

How the feature could be used:
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Take bug #88746 for example where the USB autosuspend feature breaks USB2.0 for some people, while at the same time removing autosuspend would break suspend/hibernate/resume for another crowd.

You could start a simple poll:
#1 Does disabling autosuspend fix your USB2.0 problem ? yes/no
#2 Does disabling autosuspend break your suspend/hibernate/resume? yes/no

If more than one HW profile is registered with your launchpad account
the following question shows up:
#3 Select the systems these answers apply to ? Choose form list.

And at the end you would know not just for how may people disabling
autosuspend works ... but also the exact chipsets that works for!