It's not too late to publish.
It's perfectly fair to go through your postings here and format them to be more book-friendly, in terms of how they're written and how they mesh together. Go for it and see what you can accomplish. Don't die without first holding your own book in your real-life hands.
I will think about it. I do have a lot of protection from emergencies but what I do not have at the moment is a lot of funds I feel it would be wise to put towards a book. At least not now. We shall see.