The most obvious problem with Twitter is the overwhelming amount of noise. While Facebook uses algorithms to prioritize posts you are most likely to enjoy, Twitter is a massive free-for-all with very little organization.
Unfortunately for Twitter, the open sharing of ideas is also why many people like it. Thus, their biggest problem is also the one that will be most difficult to fix, because any attempt to correct this issue will annoy their most passionate and dedicated users.
Twitter Is Hard
It might be hard to believe, but Twitter is hard to use. At least that is one of the main reasons people give when asked why they don't use it. The difficulty of Twitter is counterintuitive, because writing a 140 character post seems trivial. But limiting users to such a small character count often results in an excessive degree of simplicity.
Condensing a useful statement into just 140 characters has proven to be too much work for many users who can just post the same content on Facebook without as much trouble. Meanwhile, those who do post on Twitter are usually forced to just share links to outside content, which leads to the next problem...
Spam
If the unmanageable amount of noise wasn't enough, it is made even worse by the fact that a large percentage of it is pure spam, and there is hardly anything users can do about it. Twitter is structured in such a way that you can either follow a person or not follow them, but with no middle ground. If you want to see useful content from someone, you also have to put up the blatant self promotion, product pitches, and automated content sharing that finds its way into almost every popular Twitter feed.
In contrast, Facebook provides a very detailed level of control over who appears in your feed and what you see from each person, resulting in a much more organized stream of content. To make matters worse for Twitter, they are having trouble monetizing their platform because their attempts to insert ads just result in even more noise and spam. Such a platform was doomed from the start.
Jay Sekulow is a prominent figure in the American Center for Law and Justice.