On these kinds of forums, there is a great deal of anonymity - most folks don't even use their actual name. All I know about anyone is a "handle" or user name and perhaps a vague idea of there level of knowledge of photography. Some people write great technical information but rarely post a photograph. Some, frankly, don't know what the are writing (talking) about and the majority, thankfully, are well-meaning and helpful. The people that really know what the are doing and saying and are willing to share their expertise, become known quantities- they earn respect.

When someone poses a question, my policy is to furnish an answer to the best of my knowledge. I have never taken anyone to task for what I perceive as there lack of expertise or knowledge in any given area of photography. If I have no answer or if feel that the question is rhetorical, I just skip it.

Sometimes I prefer to assume that many folks know what they are doing, have a methodology for a particular scenario but just want to verify their method or get other photographers' opinions on the situation- perhaps there is a shortcut or more up-to-date approach. I have been at this job, professionally, for over 50 years and I still learn new things all the time.

Of course, TESTING has to be done on any method- but testing based on what? Why not offer a basic tip or instruction and then suggest testing it out, that is if you have a real solution.

I usually not' "call out" anyone on your sort of response but what you wrote is uncalled for and downright rude!