A variety of reasons.
The main one, I think, is the 'relaxed moderation' as someone else mentioned. I know that some people don't find that positive, but I find it helps us to have detailed and in-depth conversations. You can't get seriously into any topic without people getting passionate about their beliefs, which can cause a disagreements, but in my opinion it's the only way to really talk things out. I love forums, but in the past I've been on so many where a topic is closed as soon as the conversation gets interesting, and it's so frustrating.
Similarly, I think most members are more open to disagreements here. There are arguments, but it seems like there is more of an appreciation for them here than on most other forums. If we disagree with someone on one thread, it doesn't tend to taint our entire view of them - posts seem to be taken more on face value and current standard than on things said in the past.
Then, of course, there's the fact that we can openly discuss autism here. This is the only place where I am truly open about my autism. I want to be in real life, but there is no good way to just announce it, so this is my space where I'm free to speak about it.
And finally, the topics of conversation. We have people here that are passionate about some really obscure things, and I think that lends itself to a community where there is always something worth reading, which I like a lot. A very broad range of topics.
Last edited by ArielsSong on 28 Jan 2017, 8:12 am, edited 1 time in total.