I was just checking the about of GIS SE and I found the about details completely irrelevant to GIS.
Should it not describe more about the details of GIS?
The About Page is for information about the GIS StackExchange site, not about GIS.
The current GIS SE About Page states who the site is for
This is a free, community driven Q&A for cartographers, geographers and GIS professionals. It is a part of the Stack Exchange network of Q&A websites, and it was created through the open democratic process defined at Stack Exchange Area 51.
what sets it apart from other sites and how you may use it.
I think it's a good about page.