I'm a writer. I write original and fannish things. I also make whole new worlds. Some of those, like Schrodinger's Heroes, are explicitly intended for other people to play in.
I'm an editor. I give feedback on friends' work. I enjoy helping folks improve their writing.
I'm a reviewer. I recommend cool things so more people can appreciate them.
I'm a scholar. This helps me spot patterns, some of which are very useful, like describing the developmental arc of identity literature. Also it's gotten me into putting reference links after my writing, so if I bring up a difficult topic, you're not left holding the bag, there are resources for dealing with it.
I'm an activist. I use literature to show people what is possible. Pretty much anything that is an idea or practice rather than an object or power can feasibly be transported from one universe to another. So I look for things that can make the world a better place and bring them here. Other times I point out the flaws in what people are doing here. I fill in gaps where some people are not represented, or are portrayed negatively.
I am a bard by talent, vocation, and profession. This is what I am; this is what I do.