It's ignored, because most labs in the world cannot reproduce it yet, because LENR is not well understood yet. However, LENR is not dismissed completely, see [0

It's ignored, because most labs in the world cannot reproduce it yet, because LENR is not well understood yet. However, LENR is not dismissed completely, see [0]. My own idea is that plasma micro-bubbles are hot enough to cause nuclear fusion somehow. [0]: https://spectrum.ieee.org/energy/nuclear/scientists-in-the-us-and-japan-get-serious-about-lowenergy-nuclear-reactions https://spectrum.ieee.org/energy/nuclear/scientists-in-the-u...