TFL Bill was an earlier exhibit around here. TFL means True Forced Loneliness. He and a few compatriots, as far as i can remember, created the MGTOW movement. This was the infancy of incel culture. We bared witness.
I looked up TFL Bill not long ago, and I found an entry on some kind of manosphere wiki or something. I don't think I saw anything about him founding MGTOW, but who knows? I couldn't find anything about him after a quick look just now.
MGTOWs are TFLs without the self awareness. Every MGTOW video or post I've ever seen focuses on the idea that women will one day realize their mistake, and it will be too late.