Do people expect a response from someone (famous or otherwise)? Do they feel entitled to one? This does remind me a little of Twitter though. People in the rep

Do people expect a response from someone (famous or otherwise)? Do they feel entitled to one? This does remind me a little of Twitter though. People in the replies just begging for a reply or RT from a celeb. People will say ridiculous things just to get even a negative interaction with a celeb. Why do they care?