Confuse the newbies?
I think Hardinfo was the first linux app I ever ran.
Not only should it - or another comparable app - be included by default in every version of every distro, there should be a big multicolored impossible to miss notice during the installation process of each distro telling people how to find and run the thing.
It wouldn't hurt to have a second, smaller - but also impossible to miss - notice telling users that whenever they post to forums like this one, they should state the full name of the distro that they are using, such as "Mint 14 Xfce 32-bit" or "Mint 15 Cinnamon 64-bit" instead of "Mint."
Along with Hardinfo and the ability to state what they are running, it would be helpful if every distro had a menu item for "Things People Will Expect to Know When I Ask for Support (and How to Find Them)" - I could use that one, myself

.
Regards,
MDM