What are the pros and cons of using intentionally vague language in social media and other contexts

In social networks it is common to use a different language, this happens so that one does not need to type very large texts and so that the message is understood, but it does not need to be necessarily clear about the message.

The great advantage of this is the speed with which the messages can spread, but on the contrary when their real meaning cannot be understood this causes mistakes and problems with the interpretation of the message.