The idea is to basically associate accounts with weights. Increase the weights of accounts you want to see more of and prioritize them, and decrease weights of accounts you wanna see less of.
Instagram, Youtube, and Twitter have this option of “Don’t suggest content” to teach the algorithm. We can have a similar button, but the difference is that since Mastodon doesn’t have an algorithm, this will change the priority of followed accounts.
It might be more convenient to assign weights to whole lists. This way lists related to tech for example would have higher priority for those interested in it.