https://knowyourmeme.com/memes/glowie-glowposting

Glowie, also known as a Glown****, is a slang term popular on 4chan’s /pol/ board used in reference to CIA or other governmental agents posing as ordinary 4chan users in order to bait others into sharing incriminating information.

In 2017, schizophrenic computer programmer Terry Davis, known for his TempleOS software that he claimed was dictated to him by God and meant to be God’s third temple, made a video showing off various aspects of TempleOS. In the video, Terry says, “The CIA n*****s glow in the dark, you can see them if you’re driving. You just run them over, that’s what you do.”

The term “glow in the dark” refers to the obvious nature of their camouflage, leaving them exposed when they’re trying to hide in the shadows.

In fairness to Brave CEO I did not know it had racist origins and only thought it referred to the last paragraph.

Terry A. Davis popularised the term. He was a software engineer that ended up with a very bad case of schizophrenia. While unemployed due to his illness, he streamed while working on his own operating system that he built with the intention of “communicating with God”. While streaming, he used to go on these rants about how federal agents are spying on him, calling them “glowies” more often than not along the n word with a very hard r at the end. The term “glowies” has very racist associations.

In other words, you need to be somewhat fairly far down the alt-right pipeline if you actually talk about “glowies”.

It comes from Terry A. Davis’s description of CIA, FBI and the like: “They glow in the dark”