For example, I see a lot of "West Marches" style games, while others are one-shots, modules, or mini-campaign, long-running, home-brew, etc. Being able to filter out the types you're not interested in would save literal hours of time searching for a group using this page. It can seriously take forever to comb through all the posts, and ultimately give up because I'm so disappointed and defeated, all because I can't find the style of game I'm interested in. You already have this feature for what system the game is in, so adding it as a requirement for style is really just a logical progression past that.