Source?

Everywhere? or in what country/place?

I love archaic inconsistent Japanese. 今日 (obviously きょう) used to be pronounced the same way but spelled… けふ. There’s a Wikipedia page on historical kana orthography and the example the use on the page’s main image is やめましょう spelled as ヤメマセウ. The old kana usage sticks around in pronunciation of particle は and へ. There also used to be verbs ending in ず that turned into じる verbs like 感じる. Here’s a post on Japanese stack exchange where somebody explains verbs that end with ず, づ, ふ, and ぷ.
Honestly I’m glad I don’t have to learn historical inconsistent spellings, but part of me thinks that it’s really cool and wishes it was still around.

There are decades worth of good anime out there. If new stuff isn’t doin it for you, pick up a show from spring 2006 or something. A lot of trash comes out every season (and always has) but nobody is forcing you to watch it.