They meant Sweet Home Alabama, but they referred to another place: “Olbama”
Apparently, people don’t read their posts before uploading them. Correcting spelling mistakes is very easy. Why don’t they do it? We suppose that there are just some people for whom grammar and spelling are unimportant things. But, as we already said, any small mistake can unleash a chain of comments on the Internet.
This person wanted to allude to the famous title “Sweet Home Alabama,” but instead, they wrote “Sweet home Olbama.” Maybe there is a place with that name, and this person just made a pun here. We would definitely need more context before passing judgment.