Answer: It's understandable that you blocked everyone who sent you a DM all of a sudden. It can be difficult to tell which messages are real and which are spam. However, if you are sure that some of the messages were from real people, it's good etiquette to send them a message apologizing for blocking them. That way, they know you didn't mean to ignore them and that you understand their feelings. It's also a good idea to let them know that if they would like to reach out to you again, they can do so by sending you another message. That way, if they are real, they know you are open to having a conversation.