Why is nobody responding?

Level 1
I have tried to buy an item from 3 different people and I hear nothing. I have messaged them and still nothing. I’m new to this site so I’m confused as to why this is happening. Is this normal for this site?
It depends, maybe they are inactive or they may have logged out of their account. Also check when the listing was posted, it may have been a while back. Or maybe they are just ignoring you. There are so many different possible reasons.