Or another term which is more descriptive. This is the first thing people see when they type in Lemmy
Nobody knows what the term means. Even Wikipedia doesn't describe Reddit as a link aggregator. For potential new users this is a massive turn off. Unless we want Lemmy to stay a niche community it needs to accommodate to layman terms.
Most people who land on the join Lemmy page don't even know what the Fediverse is.