Our chameleons don't seem to be aware of this information... *LOL*
They go nuts over moths - even the small wax worm moths. If we have silk worms (after they have mated and layed eggs), these are also a welcome treat. We have also fed the large hawkmoths (from hornworms) with no ill effects.
In the wilds, there are numerous species of moths (some huge) that are certainly food for the various chameleons species.
There are electronic devices available to attract and capture outdoor moths too. So, we don't agree that it is harmful. Just use common sense as to the appropriate size for your chameleon, and add a few for variation of food when available.
Hope this helps,
-----
