The hero header contains the same description for the Main and Meta sites. Here's the one for MSO:
Meta Stack Overflow is a question and answer site for professional and enthusiast programmers. Join them; it only takes a minute:
This can easily confuse people who are new to the network, so I feel this should be changed to something Meta specific. Perhaps re-use the text from the sidebar, that has a good description:
This site is intended for bugs, features, and discussion of Stack Overflow and the software that powers it. You must have an account on Stack Overflow to participate.