I found this and thought we could find a use for it.
Wikipedia describes E-Prime, short for English-Prime, as a modified form of English. E-Prime uses very slightly simplified syntax and vocabulary, eliminating all forms of the verb to be.
Some people use E-Prime as a mental discipline to filter speech and translate the speech of others. For example, the sentence "the movie was good", translated into E-Prime, could become "I liked the movie". The translation communicates the speaker's subjective experience of the movie rather than the speaker's judgment of the movie. In this example, using E-Prime makes it harder for the writer or reader to confuse a statement of opinion with a statement of fact.
Discuss! In E-Prime!
E' isn't really about avoiding the verb "be". For example, IMHO E' could allow the passive. (I don't like the passive for other reasons.) It could allow us to say "The purpose of E' is X", because that's equivalent to "E' accomplishes X". Any usage of "is" that you could restate without "is", and without introducing new data, is fine.
The bad kind of "is" is the "is" that hides data. When someone says "Hot peppers are nasty", they should instead say, "I don't like hot peppers." When someone says "Jimmy is irrational," they should instead say "Jimmy plays the lottery", or present whatever data they're using to infer that "is".