This is not a time problem.
This is actual interest in the content problem.
Which is nowadays not really present on the Hive blockchain.
Often the so called curators do not even see the content they curate, because their upvotes are automated.
And realistically speaking, if someone have the time to write hundreds or even thousands of words in their own posts, then they certainly have the time to write comments too under other people's posts, because generally reading a post, and writing a comment takes much less time than writing a post.
People have time to read posts.
And also have time to write comments too.
At least on a properly working social network.
Honestly, nowadays even the SMALLEST Facebook groups have more real interaction than the Hive blockchain in general.
Because the people there are actually interested in the content.
The Hive blockchain is technically a revolutionary platform, but somehow nowadays it lacks of the people, who would actually be interested in the content.