I don't think I have ever seen it done as badly as some of these comments. Scrum itself is a very light and quite flexible framework, half of the complaints her

I don't think I have ever seen it done as badly as some of these comments. Scrum itself is a very light and quite flexible framework, half of the complaints here aren't even Scrum related. User stories aren't part of Scrum, neither are story points or burndown charts. Of all the people complaining about Scrum it doesn't sound like any of them have read the Scrum Guide. Symptoms of Scrum are not managers pressuring people at stand ups, squeezing 4 weeks of work into 2 and having a "team" of 20 people. These are symptoms of poor leadership.