I have had this account a long time, but I would really like to contribute more.
My areas of expertise include mathematics and computer science. I am an active researcher in theoretical computer science and discrete mathematics.
I have some knowledge of some other topics in a non professional capacity. I play the bass reasonably well and a number of musical instruments badly! I am a huge comedy fan and I am interested in the history of comedy and music too. I love languages and linguistics. I know the basic grammar of four languages. I am not yet conversationally fluent in any other than English, but I am working on it!
I have a general layperson's interest in a wide variety of topics. I tend to find myself reading wikipedia articles in the following fields a lot: zoology, US politics, european history, ancient civilizations, socialism and capitalism, human geography.
One of my goals is to clean up references to the Russell Group on wikipedia. There are many cases where it is referred to as elite, or analogous to the Ivy League or similar. In fact, it is merely a lobbying organisation that represents the universities with the best brand names. When you remove Oxford, Cambridge, and the central London universities, the remaining 19 Russell Group universities are outperformed by the now defunct 1994 Group universities. Full disclosure: I received my first degree from a 1994 Group university and my PhD from a Russell Group university.
A pet peeve of mine is the rampant misuse of the "Schrodinger's cat" thought experiment. I have recently made a couple of edits trying to fix these, please contact me if you disagree with my rewrites. I am not a physicist but I know that superposition is NOT THE SAME as simply being unknown. When I flip a coin and put my hand over it, the coin is either heads or tails, it is not in superposition until I lift my hand!