There is this initiative to share links on reddit to attract more people to hive where I take part.
@x-rain/hiveposh-contest-15

If you look at these stats there is a great difference between Hive/snaps and reddit.
@blkchn/re-blkchn-sr9jrw

On reddit users respond, discuss. Here on Hive is very low interaction.
Users are busy writing posting, hoping to get rewards.

On comments you do not get many rewards, so they concentrate on postings.
Thats my humble opinion.