Question for mods: recently, so much obvious spam, personal health situations or marketing posts: should the sub become approved users only?

See title.

It seems to me that since the subreddit got more users in the past year or so, there are more posts than before, some quite interesting, but also way more junk content as well.

The 'not a personal health situation' doesn't really deter people from posting unfortunately

Would it be better to allow posts from approved users only? Just an open questions to the mods and the community.