@AngelaPrestonProbably to help you populate your timeline. Some of them are just people on the network who are followed by a lot of toot.cat users, others I'm assuming are people you've been following. Mastodon, like most Fediverse inferfaces, doesn't have algorithms, so you need to follow people and hashtags to see them on your timeline, and any suggestions you get for that are going to be based on some pretty basic metrics.