The Dawn of Haiku OS (Spectrum)

A hybrid kernel is created using 1 of 2 methods:

Method 1:

A proprietary software company advertises operating system uses a microkernel as if it is a big selling point. Then you have a huge slew of fanboys that by into such advertising unquestionably and then touts that feature as evidence of the technical superiority of their consumer product of choice. Then more knowledgeable people point out that it's not actually a microkernel at all and it damages the reality distortion field. To repair the reality distortion field people then go out and write articles on wikipedia and various other places about hybrid microkernel kernel design.

See Also: XNU

OR

Method 2:

You have a major corporation that actually starts off with a real microkernel and then switches to monolythic after the initial release when they realize that the microkernel design would never be competitive with contemporary operating systems on contemporary hardware.

See Also: NT