Welcome to Mi Yodeya!
The first thing you should know is that Mi Yodeya does not give personal, halachic advice. That should always come from your rabbi. We ask and answer lots of questions about halacha, and also about text, Jewish living, practical how-to, and a lot more. Think of Mi Yodeya as a discussion, perhaps in a study hall, among people from all sorts of different communities -- learn from them, share with them, but take practical questions (perhaps informed by what you learn here) to your rabbi.
Now, to your question. Mi Yodeya has users from across the Jewish spectrum. Most who post are Orthodox, but quite a few are not. We have Ashkenazim, Sefardim, Mizrachi, Teimani, and probably others. We even have some non-Jews. The site welcomes all who base their lives on Jewish law and tradition or who want to know more, and does not assume or enforce a theological position beyond that.
We place a great emphasis on sources, so that the community from which any individual hails is less important. If I answer a question and cite Rashi or the Rambam or Shulchan Aruch or some other source, then my Jewish community shouldn't be particularly relevant -- you can look at the cited sources yourself and decide if I got it right.
We all want to make a great collection of well-supported, well-presented questions and answers. We are also (almost) all anonymous people on the Internet, so you shouldn't just take our word for something important without looking into it yourself.