My Take
Scratch is a beautiful website where people can upload their own games, stories, and more! However, it isn't perfect.
1. Projects are taken down if they're reported by 4 different users. No moderation, just removal. I know this because there have been people who got angry at a project (god knows why), and so they created a bunch of alt accounts or got other people to report it, and the project was taken down.
2. There's no way to ban a user from a studio, project, forum, forum thread, or user page. This has led to lots of chainmail, project advertising, and spam. Even if you use code to ban their username from a project, they can simply use the "See Inside" feature to go into the code and remove their username from the project.
3. There's an option to download a project as a file. While this feature may seem innocent at first, it can be used for project theft. All you have to do is download the project, create a new project, upload the file, publish it, and there. You just committed Grand Theft Project. This has caused there to be thousands of clone platformer projects, all with that same stupid black and beveled cube with an eye. And yet, the general populous remains blissfully ignorant.
4. Adults are taking over Scratch. Adults with more experience have posted projects like online platformers, 3D laser-tag games, and even recreations of the game Among Us! This drowns out the projects of hard-working kids. In words you ancient adults will understand, trying to make a popular project as a starter (or a novice kid) is like trying to get a job in Hollywood acting.
How I Use It
I make games with this, and I've gotta say, the coding itself is 99% good! Just wish they had an block for bouncing off of any sprite or color.