There is an international, widely-recognized standard alphabet for precisely specifying the pronunciation of things in arbitrary languages, and you are unsure of why it would be useful for people trying to figure out how to pronounce something? Visit the wiki page for each IPA symbol and there will be recordings and examples and you can learn how to read it instead of complaining that people are using the correct tool for the job. The real problem with the linked page is that it is only using IPA half the time...
>There is an international, widely-recognized standard alphabet for precisely specifying the pronunciation of things in arbitrary languages
So...why don't we spell all languages with that alphabet? Think of the increase in efficiency!
My doctor has signs and other notices that you should arrive 15 minutes before your appointment. I asked "why don't you just make all the appointments 15 minutes earlier?"