PEGWiki:PEGWiki is not an encyclopedia
PEGWiki runs on the very popular MediaWiki software. One site that uses MediaWiki that is particularly well-known is Wikipedia. One might be tempted to think that PEGWiki serves a similar purpose to that of Wikipedia. It does not. If it did, then it would be pointless to write articles about computer science for PEGWiki (when one could simply add them to Wikipedia instead). At least one article has already been copied from here to there, and was found to be written in a style unsuitable for Wikipedia. This is to be expected, because PEGWiki articles are intended to read as tutorials, not as reference texts.
Furthermore, the level and style of the article should be appropriate for PEG. So, for example, if you think an explanation is incomplete, poorly written, or confusing, then by all means improve it, but don't rewrite sections to make them more understandable for the non-computer-literate; they are not the intended audience.