Nice idea - you could trial it as an interface to your favourite link-sharing site.

> select * from homepage; -- a view that selects the most recent content from 'posts';

> select * from posts where submitted_at between '2022-01-01' and '2022-01-08';

> insert into posts (title, url) values ('example', 'http://example.org') -- submit a URL

> select u.username, count(*) from users as u join comments as c on c.username = u.username group by u.username order by u.karma desc;