An obvious difference between the bitcointalk forum and other social media platforms is their purpose for the creation. As the name implies it is created mainly for the promotion and discussion of bitcoin and, cryptocurrency wholly. Unlike social media platforms where everything goes.
You can have nearly all things in discussions in Bitcointalk forum. Discussions are not only about Bitcoin even the forum name implies it's Bitcoin talk.
Big difference is the forum discussions are in text and in other social media, people use less texts for discussions but I don't say, writing wall of texts in Bitcoin talk will give better discussions.
I decided to make this article to outline ways in which bitcointalk is better than social media in sourcing for information about bitcoin and cryptocurrency.
You are a forum member and can say it is the best but it won't lead to any consensus. People can use this forum or don't use it and are more favorite on social media.
In bitcointalk, you will read from the original resources
Original contents can be made anywhere, not only in this forum.
3. CHECK AGAINST SPAM:
In bitcointalk, there are moderators who check for spam posts, such posts are often deleted. This responsibility is not left for the moderators alone as other community members also show interest in reporting spam to the moderators. This keeps the community clean and sane as much as possible.
Spam posts are more than you think and moderators can not handle all spam posts. They need support from community members to report spam posts but members can not report all spam posts as they have limited time for reading and reporting.
Reading your later points of discussions, you only want to bold the importance of bitcoin talk and try to say it is the best, this is not true. I like this forum but to say it's the best, it is not.
Like you say, advantages of Bitcointalk over social media. What is disadvantage?