Yes, most of the less-active accounts are lurkers who post an old meme once per week or repost everything the Big 10 accounts post. As if everyone weren't already following the Big 10 themselves, so you end up with a feed full of reposts and tired memes, but devoid of original information.

There are people here following thousands of npubs, but their feed is basically dead. More effective to just find someone who reposts things you are interested in and allow them to curate your feed.