A fork of the original Youtube UnHooked, with some added features, including the ability to toggle comment visibility in the extension preferences.
TODOs/bugs:
Make comment visibility automatically change when settings are changed.
Revert comment changes when the extension is disabled/uninstalled (maybe impossible)
Automatically turn off "autoplay" when the extension is run.

The content of the original README follows:

# youtube-feed-hider
A Chrome extension for hiding the feed on Youtube.com

Install here:
https://chrome.google.com/webstore/detail/fkhfakakdbjcdipdgnbfngaljiecclaf/

Also see this related extension from Stanford:
https://habitlab.stanford.edu/