You can only complain up to a point. Twitter cannot stand in for your own judgment about who to follow. If you blindly follow the recommendations of a free engagement machine you will get what you paid for. Twitter is big enough that there is a huge variety on there, and almost always the solution is to follow better people. You cannot do that overnight. I have a great experience on Twitter, because I follow some really excellent people. It took 5-10 years to get there, and it should, because you can't speedrun the process of figuring out who you want to listen to and what you care about.