Many people have had issues installing with the Live installer on this mailing list. The question is why Debian even offers the option if there is no interest in testing it to make it work. The initial live installer images (9.0, before 9.0.1) were completely broken and could not even begin the install[1]. Clearly, this resulted from a complete lack of testing as it would have been easily caught given that it is a deterministic error that to applied to ALL the live ISOs. I think it's unfair to blame users for using the Live media as an installer. Either test the live images to make sure it can be used for installation on a wide variety of hardware, or don't provide the option at all. It appears that the debian-devel mailing list HAS called for more testing due to this situation with the explicit threat that live images will cease to be produced if nobody wants to test them [2]. With that said, users should always use the regular d-i installer images to do an actual install. The live images are useful for testing to see if your hardware is supported and also for recovery.