Our Twitter timelines are usually a hodgepodge of random topics from the various accounts we follow, but the social media company now wants to let users focus on one topic at a time, not unlike Reddit does with its subreddit forums. Twitter’s new Communities feature, first introduced as a trial in late 2021, is now being rolled out internationally and these forum-like spaces are filling up with tens of thousands of like-minded people posting about niche topics like Thai food or photography. Once you’re in a community, you can publish tweets for that specific community, meaning for example your…