Best landing page I ever designed/wrote had this headline: "Fuck it, we like Reddit and we got some shit to sell." By every single metric (views, clicks, time spent on page, conversions), it murdered every other landing page in that campaign. Point is: experiment, have fun, be creative, copy other people's work, add your own flair, do things totally against best practices and logic. Marketing isn't a set-it-and-forget-it kind of activity. It's always moving.