Interesting, except it has ben said MANY times that if you do not allow your dreads to dry COMPLETELY between each washing, and you have used wax, that got trapped in your dreads coar, it CAN cause mold. Wax holds moisture, so if it is constantly wet, mold happens... so no you have not contradicted the "dreadlock myth".
I was actually refering to rot not mold which is different completely. There was a myth about wax rotting your dreads from the core and rendering the inside to mush... Then again this is a myth I've seen spread on a non-related forum years ago which was spread by the pro-natural people to scare newbies into going natural. They were just being dinks. If this myth is in fact true, these thousand year old wigs would be no more. If wax is used properly it will not hinder the locking process. That is myth.
Here are my locks at about 7 months I think - clearly they are locking nicely and wax did not hinder anything:
I've never had waxy clothes, beds, stuff stuck to my hair... because I used wax properly. It of course is not necessary and no one should feel obligated to use it or not to. This thread is frequented by many people who are new to locks and I think it's wrong to tell them that wax is bad and horrible because it isn't. That is a very pro-natural way of thinking which works for many, but not all and there is nothing wrong with wanting nice looking locks from the begining. Not everyone goes into it for a naturalist-type journey. Some just want locks for the sake of having them.
There is no sense in bashing one method over the other unless it is as unvalid as spreading peanut butter mixed with toothpaste onto your locks for six days after the first full moon of the year.
As for mold, dreads will produce mold even without the wax - i.e. in frequent swimmers who don't let their dreads dry, when going to sleep with wet hair, and even if you live in a humid environment. Dreads are also like natural air filters and if you smoke you can expect goopy yellow stuff when you wash. This is not wax related either.
As for the Egyptians, they didn't have hair... they wore wigs and shaved themselves bald. Well the well-to-do ones did. They used the beeswax cones mostly as a perfume but according to archeologists it somehow played a role in their wonderous preservation.