Before the 2016 election, there was a lot of campaigning on both sides. Especially for the Leavers, they often resorted to stretching the truth or outright lying to get what they want. An example of this was how we would not get bossed around by the EU. Although they would have less power over us, that power over us works both ways, hence we would also have influence over the EU and possibly other EU countries so we would have more power in the long term. That is one of the main ones but there are far too many to cover in this single post.
Speaking of misinformation, I think social media did not help either because we rely on it and use it more and more as the days go on. An obvious reason is that anyone can say anything that they want but without as many precautions put in place. Even Wikipedia have moderators that can take down inappropriate or factually incorrect material. Because of that, lies can spread extremely quickly! Even if the information that you see there is true, it will often be polarised to your specific views so you will be more interested and stay on social media for longer, which allows the companies to make more money from showing you advertisements. But even non-Brexit related posts could still influence people because they might have left-winged or right-winged ideoligies, which may influence your opinion on Brexit because the far-right or left are generally more likely to vote leave then people who have more centerist views.
You may have heard about the post-truth, which states that people are more divided on opinions than ever because of the reasons that I explained previously. It is very easy for people on opposing sides to spread false information about their opponents in order to get their way. In my opinion, this is the main reason why fake news is so prevelant today. Today, the news is a lot more about emotion and less about the facts. The most prevelant emotion in the news nowadays is anger because it is an emotion that can easily trigger us to share it to more and more people.
This leads onto everyone becoming even more divided on their opinions, thus making it harder for us to settle on a deal or leaving in the first place. I believe that social media giants such as Facebook, Twitter and Instagram should take more action to solve this problem. However, they are probably reluctent to do so since they would lose money because of the reason that I mentioned in the secong paragraph. What is even worse is that they have become monopolies which begs the question again about why they are not taking more action. I think that they have more than enough money to do so, yet they still do not do it because they want to get bigger and bigger.