I don't like to complain online about any gun problems related to manufacturer.
This is, of course, your right. We encourage people to describe their problems, and how they get resolved. Whether or not you get good faith service from the maker and the retailer you bought it from.
Stating what is, what the gun does, or doesn't do, and what the people you deal with about it do, or don't do, isn't complaining. it's sharing experience.
Whining or going on a rant about how all a maker's products are junk, because yours jammed when you fired it upside down, under water, is complaining! And we do discourage that.