There are several ways a subreddit can be manipulated. "Brigading" involves a coordinated attack by social media users on another group. In Reddit that would be a group of users looking to manipulate the conversation or voting pattern on a subreddit.
Range, and number of supported devices
，这一点在safew官方下载中也有详细论述
The blocks are linked together to create a history.
If you look at all of the JS glue code for the single call to console.log above, you’ll see that there is a lot of overhead. Engines have spent a lot of time optimizing this, and more work is underway. Yet this problem still exists. It doesn’t affect every workload, but it’s something every WebAssembly user needs to be careful about.