Why isn't there a World Crazyhouse Championship?

Any ideas?

It's not big enough.

Also, crazyhouse is a bit inconvenient to play OTB (at least in fast time controls, which is how it's usually played), and online there's always the possibility of cheating, so it's hard to run it in a manner that people would have complete confidence in the integrity of the event.

However, there is a World Worm Charming Championship: https://www.atlasobscura.com/places/world-worm-charming-championships 

Because 10 year olds don't organize world championships, and adults don't play crazyhouse seriously.

WTH, lol.

Try bribing FIDE, it seems to have worked for Saudi Arabia. 

But crazyhouse is much good.

All the principles that apply to normal chess apply to crazyhouse in an exponential form. Especially dynamic factors like lead in development and king safety.

All principles don't apply exponentially lol.

There are no endgames, so strategy is greatly decreased. If games were long and played seriously, it would mostly just be about initiative and calculation.

Which is why it would be popular.

And if you want to have endgames you can have a separate section for Chess 960

There are no endgames and the positional factors are totally different.  Dominating a particular colour is much more important than in normal chess.  Fortresses are totally irrelevant.

A crazyhouse championship would be interesting, but there's not enough money in it to make it happen, and unless FIDE picks it up there's not an internationally-recognised organisation to run it.

Calculation is a bore though, and removing strategy removes depth.

It's mostly a game for kids who only know how to play chess by calculating short forcing sequences.

You could have people in the same room, with arbiters and everything, playing on their computers.

Yes, that could be done, but there's a cost to that, and there's not a lot of money in high-level crazyhouse.

The current Crazyhouse World Championship (2018) Candidates is actually ongoing right now; with only a few one-to-one matches in, all is still very much to play for. It's a very exciting, fast-paced format this year - with 3|2 time controls - in ten-game heats over the course of the round-robin tournament. Coverage of the event by the current world champion, JannLeeCrazyhouse, even some from the esteemed GM Yasser Seirawan, is a must watch for any Crazyhouse fan.

What are crazyhouse rules?

Its much alike to Shogi*, in that, for Crazyhouse, pieces that you (or your opponent) capture become part of your own (or your opponents) forces (usually such pieces are termed, "in hand"). They can then be placed back on the board en-lieu of a standard move (with pawns having to be placed as themselves, ie they cannot be placed and promoted simultaneously) on subsequent turns.

(*Or for that matter, Bughouse; essentially a partnered version of Crazyhouse, which is more popular, especially in clubs, and sadly, often introduced in isolation to the other.)

crazyhouse was born until 1960's.