We all have our own little peccadillos. From some folks you get a pretty much negative overall vibe, from others a more positive one. I used to work in a deli years ago, and you’d get people who would come in and order a sandwich, say roast beef, and then proceed to tell you what they DID NOT want on it. As a sandwich maker, I always thought that was kind of a useless approach as i am waiting to find out what you DO want so I can make your sandwich! This scenario made me think of that.
My approach is this: if you tell me what you like, I try to send it if I have it. If I don’t have it, I try to get close, based on that list and what you’ve told me about yourself in your profile. I do, like others (but not all), try to keep a variety of cards on hand so I have some choices and can try to meet folks desires.
I would note that about 2/3 of the cards I’ve received are on my desire list, and about 1/3 are not; I have a big desired list. I would also note that the first thing I look at on any card I get is not the front but the back. To me what is most important is the message that was sent.
I don’t send postcards in envelopes. My one exception to that is traveling envelopes. There’s my peccadillo. That, to me, is not a postcard exchange.
My advice in this case: Send joy. If you have something that you know will bring joy, send it. If you have something that you know will bring a smile or a laugh, send it. If all you have is cards on their “do not like” list, send one of those, and send a joyful message. Send whatever you send the way you normally do. In short, offer yourself as you are, and spread love, not hate. Then don’t sweat the consequences and move on.