Standardizations can be notoriously inconsistent[1], disregarded[2] or evolve fast[3].

There’s a surprising amount of interesting articles on wikipedia about that.

[1]: https://en.wikipedia.org/wiki/Ough_(orthography)#Spelling_re...

[2]: https://en.wikipedia.org/wiki/Eye_dialect

[3]: https://en.wikipedia.org/wiki/Sensational_spelling