I fully understand having personal opinions about airguns (I do as well) the only difference with me I give clear reasons for liking or not liking a gun and then to debate it to see if I have missed something, I like it when someone says that there is something wrong with my favourite gun as it puts me and the gun to the test and a chance to maybe put it right if it's a genuine fault.
But to say you just don't like a gun without explanation isn't very helpful, in my personal opinion
BTW what are the Diana's that don't speak to you that you have?