Well, they shouldn't.
I mean, I try to be as accurate as possible when giving advice - and I rarely give it in regards to picking species - and I try to be similarly accurate when voicing my opinion. But the two are different things: The former is to help others out, the latter is to help myself out, mainly by spewing my vitriol and ventilating. I try to a high extent to make that absolutely clear by adding the "I think" or "I believe" part. That doesn't always work though.
Maybe it's a bad assumption on my end, but I believe people are well capable of separating the two and also that they're very much capable of forming their own opinion on what they do and don't like.
I don't like maples either. I think they're the most cliche plant family to pick for bonsai, the thirteenth in the dozen. Their care comes down to "water them whenever it's not raining" and "hack them to bits if they get too big". That doesn't mean though, that I'm not growing two arakawas and a heap of tridents and trying to make the best out of them.
I have cool succulents too! Inside my house, not growing as bonsai, but as houseplants. Which is what I think they should be. And people seem to disagree with a passion! I like that about this forum. My hope is that anyone who sees those succulents and likes them themselves thinks something along the lines of "Man, fuck that guy_wires, I'm going to prove him wrong!". I try to support opposing opinions just as much as my own, but I'm biased towards myself of course.
Let it be known from this day forward that I can passionately disagree with anyone and still think they're right.