Hi Hui.
Appreciate your attempt to give reasons why no answer was given.
The reasons are, in my opinion, just that. Attempts to sugarcoat the situation.
You and I both know that if the suggestion(s) supplied were not quite what was needed/wanted, they are 99 out of 100 times back at least within a day.
Even taking in consideration that people are at the other side of the world, it usually does not take very long to come back. A matter of hours in my experience.
If it was me and I was not able to personally answer, I would ask someone, my son, my daughter, my wife, an employee, to let the person that helped me know that I appreciate the help I got. But of course that is me.
If my train of thought here is totally wrong, I apologize but I have to say, dealing with people of different nationalities from all over the world for 30+ years, I do not think so.
It is nice to see though Hui that you monitor what is happening on the (your?) site.
Copied from the Site Rules (Posting Rules & Etiquette):
1) If you post a question, check the answers and acknowledge the answer if correct or incorrect. We get a lot of posts with 1 answer and no feedback, so we're unsure if the answer is right or wrong or if the poster has even bothered to read the answer.
2) Say "Thanks", whenever you can. Recognize when someone, who is a total stranger, has bothered to go to the trouble and time to assist you with your question and they have done it for free. Often readers will spend several hours working on a solution to a problem, a line of recognition and thanks will go a long way.
You might know the saying: "Been there, done that, got the T-Shirt."
Sorry for me ranting on Hui but keep up the good work and don't worry about me and my politeness.