Now that I think about it, fanboys and haters may be two sides to the same coin, people who project personal qualities onto the things they use.
I will admit it: I am a Jabberwocky fanboy. When I first started using Jabberwocky, I thought it was a pretty useful app for gimbling on Wabe.com. It has decent slythy tove support, too. But it was just another gyring app.
That changed in version 2.0. They made a radical UI overhaul, and now you could outgrabe your mome raths with one click. But the new Vorpal system - I hesitate to call it a mere feature - was something else. I'd tried other gyring-and-gimbling programs, but the whole Vorpal system was a new way of looking at the problem. As soon as I figured out how it worked (Jabberwocky is not an easy app to use, but once you get it you get it) and I could see what the developers were trying to do, I was submerged in frabjous joy. They understood what I needed. Someone was on my side. I want the world to be a better place for people who give me things like Jabberwocky Vorpal.
Let me contrast this to Bandersnatch. Bandersnatch just sucks. The new Tulgey Wood UI actively tries to prevent me from getting any gimbling done. It's overcomplicated and galumphs under even moderate processor load. The snicker-snack sound effects are annoying the thousandth time you've heard them. People keep blithering on about how powerful and manxome it is, but all I can see is that it is trying to get between me and what I want done. It makes me just frumious.
If I could kill a Bandersnatch developer and get away with it - well, I'm not saying I would, but a lot of uffish thought would be required for me to make the right decision.