I actually find that not pronouncing letters helps with understanding. If we ignore the first R in my last name, nothing changes. If we drop it from the 80s President of the United States...oops, I mean Pesident of the United States, we have Onald Eagan. Perfectly clear.
I also find that adding extra, silent letters to words improves your ability to communicate. It also means that everything you write is correct: you make up your own spewlingz az u gow alung. Or not.