DHH is a moron who should be ostracized from FOSS, 100%. However this was an intentional brigading attempt which succeeded pretty well. Not sure why justinmk didn't just instantly ban the person making this issue and nuke it from the face of the earth. People saying that they are going to move from neovim probably weren't even using it in the first place and those that are, are probably bullshitting. This is like the 5th time this has happened in FOSS, I thought people would be wiser to just ignore people when they scream about this shit?
New update:
and final comment:

Hilarious. I think the dev pretty much outed himself like that. Only a matter of time until the next thing.
Seeing how hard he is working NOT to remove the quote, makes one think that he actually supports DHH and with that, NVIm is uninstalled from my PC.
The best thing is that the quote is extremely stupid.
"Full-screen Neovim looks cool as hell!” — DHH
Genuinely who cares that any douchbag said it looks “cool as hell”? They’re legitimately embarrassing themselves.
I'm hodling, it might just be contrarianism. Really hope this won't push them further into DHH corner too, neovim is like the only thing I cannot imagine replacing.
Tbf I’m not a huge NVIm user, I use it occasionally in terminal. Most of my work is done in Emacs and I can’t recommend something like doom Emacs enough for beginners.

"threat" is starting off strong. ill make me some popcorn.
Ya all still on github? Pff
Hell nah I ain't on shithub, but it sure is fun to browse issues like these.
neovim will most likely survive with possibly a few forks that will die out and some people might move. I already am on helix, so no need to move yet.
Neovim
Neovim is a modal text editor forked off of Vim in 2014. Being modal means that you do not simply type text on screen, but the behavior and functionality of the editor changes entirely depending on the mode.
The most common and most used mode, the "normal mode" for Neovim is to essentially turn your keyboard in to hotkeys with which you can navigate and manipulate text. Several modes exist, but two other most common ones are "insert mode" where you type in text directly as if it was a traditional text editor, and "visual mode" where you select text.
Neovim seeks to enable further community participation in its development and to make drastic changes without turning it in to something that is "not Vim". Neovim also seeks to enable embedding the editor within GUI applications.
The Neovim logo by Jason Long is licensed under the Creative Commons Attribution 3.0 Unported License.