I've used Calibre over 5 years. It's being with me from Windows, then Linux, and now OS X, and always one of the first software installed when I setup a new computer. Thanks for your very hard work, Kovid Goyal and other contributors.
Despite its first 1.0 hit, for a long time, the project has been developing too actively for me to update every minor release (every week less or more).
It's strange that now Uncle Bob seems defending that person by calling out "Cancel culture".