This is good advice. I worry that you've already put up barriers with your ex-boss, but if there's any way you can salvage the relationship, perhaps they could

This is good advice. I worry that you've already put up barriers with your ex-boss, but if there's any way you can salvage the relationship, perhaps they could at least reinstate the credit to you on the site. You aren't going to win this one, but at least you could put the site on your resume.