For example the common preposition da, which has no exact equivalent in Romance and Germanic languages and is frequently misused by speakers of those languages, was defined in the PIV according to how it was misused by most French authors rather than to how it was used in Zamenhof's writings and by authors who follow his example. (Sergio Pokrovskij, 2007. Lingva Kritiko: Studoj kaj notoj pri la Internacia Lingvo[1])
