I deleted that part. Who I am to say that I think you need glass protection over your tank from exploding bulbs by some happenstance. If you don't want to, don't do it. I would never offer that to someone starting this hobby. If others wish to, fine.
I personally think that is poor advice, but that's me. That's why I changed it. Seems if you offer an opinion- there is someone right behind saying BS. "i have done that for years" Well that doesn't make it right and you just got lucky.