Mainly going to be film, game or book trivia. Politics and real people are so subjective. If someone makes an uncited statement that I can cite, I will, or else it'll get reworded. Consistency is the key, if one line goes because of a reason, so should anything else affected by that reason. Edit wars that occur because people can't decide on whether something should be in or not probably come from it being badly worded. Edit wars that come from inconsistency are best just left to the other person, and letting karma sort it out via a message on the talk page. Thankfully, most people have a brain and want to make this place work. Spelling and grammatical mistakes can expect a passing change if noticed, but people writing like five-year-olds cannot always be fixed so easily. Perseverence is the key.
Haven't made a new page from scratch on Wikipedia just yet, preferring to add input to existing pages, or resolve back-and-forth edits. I don't use the Random Page to find things to change, or the Recent Changes, as almost all are going to be something that in all honesty I couldn't offer guidance with. My first stop is usually to see what's evolved in recent contributions, offer more information if it's come to me, or skip sideways and follow links until I see something I have knowledge of.