Hi! My username is 5mv2, which is derived from the (Newtonian) formula for kinetic energy of a single moving object, 1/2mv2. I wanted to use "0.5mv^2" initially, but had to adapt to username conventions :D
I will probably not use this account a lot, mostly when I randomly find an article that could be improved. However, sometimes I may also enjoy copyediting some articles as a counterbalance to my other, rather formula-heavy activities.