Reddit reviews Fundamentals of Turfgrass Management

Nice useless links. First link mentions nothing about returning grass clippings, so you've missed the point entirely. Publications from Minnesota and Penn State both clearly state you can return grass clippings without increasing thatch production. Read through Turgeon's or Christians' books and you'll notice neither of them recommend adding kitty litter to a sodded area. I don't know why I waste my time with you. I guess I enjoy the extreme level of bullshit that you present as scientific.