…Who the h*ll do you think you are to rate me as being “unprofessional” and “stupid”?
Are you a pilot? No, probably not because if you were then you would know that there are other ways acquiring wx info that may be more appropriate/precise depending on where you fly, and from country to country.

I didn’t say that you are unprofessional or stupid – but that to go flying without knowing the code would be.

Not a pilot, but I was involved in civil and military aviation all my working life until I retired last year. What could be more precise than a properly coded professional observation? The code has taken the WMO and ICAO years to perfect, and is internationally recognised – even by France.
By the way, RETS is a recent thunderstorm, not a recent thunder shower – are you sure you know the codes?