The big difference between Web 2.0 and 3.0 is that creators earn from what they post. Web 2.0 had nothing to lose by letting their feeds be free-for-alls and then creating algorithms to let users filter out what they don't want to see.
With 3.0 because of the money attached spammers and plagiarists are drawn like moths to a flame. Which means more of them are showing up given the chance. The useless noise they create quickly buries the better content and the better content creators leave.
As @dreemsteem has already talked about on this post, we've seen this action and it led to the destruction of the platform. When they moved to finally deal with the problem the spammers doubled down believing they had a right to spam.
I'm seeing the same thing playing out on LOOP and am wondering how long it will take them to start seriously dealing with it. They have slowed down the spam posts by charging a fee to post. But they carry on with rewarding spammers for 'nice posts' comments which makes the comment section on posts nothing but garbage.
Will be interesting to see how it works out for Blurt, they do charge a transaction fee when doing anything but voting.
We're better with slower growth and better quality content producers be it written, graphic, video or whatever then when the mainstream starts to find this 'new' world they wont have to paw through crap to find something worth their attention.
Content producers will have greater incentive to stay around. I've always been one to believe that you don't make a mess you know will need cleaning up later where people will have change their ways to do the cleanup. It just creates more problems in the long run.