is-odd, alongside a bunch of other microdependencies are almost all the work of one person, who made as many micropackages as possible and then PRd them into other more popular libraries. There are not 6 million people directly downloading `is-odd` a day. At all.
When this person could make one library to do something (like an ANSI-Colouring package), they would fractalise it into as many dependencies as possible, because that boosts their download count on NPM. I should note that this is just one person who has managed to nestle their way into some larger projects. I apologise for the spam, but this point really needs hammering home:
https://github.com/jonschlinkert/ansi-black
https://github.com/jonschlinkert/ansi-reset
https://github.com/jonschlinkert/ansi-bold
https://github.com/jonschlinkert/ansi-dim
https://github.com/jonschlinkert/ansi-italic
https://github.com/jonschlinkert/ansi-underline
https://github.com/jonschlinkert/ansi-inverse
https://github.com/jonschlinkert/ansi-hidden
https://github.com/jonschlinkert/ansi-strikethrough
https://github.com/jonschlinkert/ansi-black
https://github.com/jonschlinkert/ansi-red
https://github.com/jonschlinkert/ansi-green
https://github.com/jonschlinkert/ansi-yellow
https://github.com/jonschlinkert/ansi-blue
https://github.com/jonschlinkert/ansi-magenta
https://github.com/jonschlinkert/ansi-cyan
https://github.com/jonschlinkert/ansi-white
https://github.com/jonschlinkert/ansi-gray
https://github.com/jonschlinkert/ansi-grey
https://github.com/jonschlinkert/ansi-bgblack
https://github.com/jonschlinkert/ansi-bgred
https://github.com/jonschlinkert/ansi-bggreen
https://github.com/jonschlinkert/ansi-bgyellow
https://github.com/jonschlinkert/ansi-bgblue
https://github.com/jonschlinkert/ansi-bgmagenta