I agree that if you are used to having money, or are a professional who has worked for a number of years, that 91k or even higher is a perfectly reasonable salary. I am pretty sure a number of us on this very thread earn this much or higher - my salary survey certainly had a fair percentage of very high responses as well as a mix of medium and very low responses.
However, the problem was not really with the OP's salary, it was with his POST. His post asked for some unspecified help while the only information given was his salary. Firstly, that makes it pretty hard to offer any actual help because we do not know what the problem is. But secondly it presumed that he was only "talking to" people "like him" - that is, expats on high salaries. Frankly - that was very, very naive. This is an open internet site. Who knows who we all are! I've met quite a few people on this site, and the range of people, incomes, jobs, backgrounds, personalities etc is as wide as in Hong Kong generally. We have bankers and DH's and everything in between...... That's what makes the site so useful and interesting. However it does mean that if you come in quoting salary levels that are held by only a tiny percentage (probably less than 1 or 2 percent? not sure) of the people in HK, then by definition a large percentage of people are going to think you are boasting, or trolling (probably more likely on an internet site), or are just plain stupid.
If the OP had sat down and perhaps read a few threads on here first, or thought about what he was doing, he might have written a better post and thus got a better response. Simple really.