With all due respect, you're wrong. Unlike porn nannyware the goal is not 100% blocking of "offensive" content.
Spam filtering does work, very well, and fake news can be defeated with similar techniques.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Spam filtering does work, very well, and fake news can be defeated with similar techniques.