[Zanni]

Ugh, no. You'd gain the very minor benefit of being able to read in the author's dialect but at huge cost in reading speed. I cringe whenever an author forces an accent or dialect into their writing rather than simply noting that a character speaks with a particular accent. It forces me to read at the speed I can vocalize, which is about half my normal reading speed.

I can see this being useful for specific cases but not as a general practice.