Writing so that children, people for whom English is a second language, and people otherwise unable to comprehend advanced writing, can understand you is not a bad thing.

I'm considering applying this to my product documentation, even though our users are generally well-educated...we can't afford to have docs translated into a dozen languages, but simple English may be readable by enough foreign language speakers to make it worth the effort. English is a tough language; making it easier for new users of the language is great, IMHO.