I’m a brand new postcrossing member. I read in the guidelines that users aren’t supposed to make demands, but 2 of my 5 first postcard pairings had long lists in their profiles of what they have, want, don’t want etc…Reading their lists makes me feel like I really don’t want to send them a postcard. I’m not a store and I’m not going to buy special postcards to finish out their collection. I thought this was just a way to send and receive postcards and be surprised but it seems that some people (and one of these folks was a 10,000+ sender) assume this is like Amazon shopping? I see that that there are places on this site to set up specific exchanges but the general user profiles are not what I expected. Once I’ve been “given” a person to send a postcard to but my postcards don’t seem to meet their specifications, can I reject them and get another address?