Hi, I've noticed that it can take some time for all the listings to show up in the gallery. The longest mine have taken is about 4 hours. I think it also depends upon the time of day you listed. But I'm also new...so this is just from my experience so far.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .