It's probably just that more people have heard of reddit and can easier relate to rather than 4chan. Although it's probably unfair - I am using reddit for a few

It's probably just that more people have heard of reddit and can easier relate to rather than 4chan. Although it's probably unfair - I am using reddit for a few years and they have tons of amazing communities and le reddit army (swatters, Boston bombers, etc) are amazingly easy to miss unless you're looking for them.