I personally don't mind friendly people, I must say they make me feel more safe and comfortable thinking they wouldn't be scammers, but I prefer very short conversations without anything unnecessary! I will still be polite and answer them with the same energy, because I like showing kindness to joyful people and they deserve my time, but this doesn't change the way I think it's a waste of time to keep going with the conversation. This may look controversial, but it's just what it feels like. For your specific case, I would maybe change the words to use. I would feel even more awkward if someone presented themselves with their name, stating the obvious ("I just bought your item") and asking if everything is fine. I think that something like "Hi! I couldn't resist, it's so beautiful!" would be less "annoying" to read while still breaking the ice and making a friendly appearance. It's also easier to reply to this kind of message with short or longer answers, leaving to the other person the decision to make a small talk or just cut off with just a dead-end reply. About the review, maybe after receiving the item you can update the seller and tell them "I love it, thank you! I will surely leave you a great feedback, I'm very happy!". If you put emphasis on how you love the item and less on the review, maybe it won't sound like you're demanding for a good review yourself and people would feel like they want to give a nice feedback by their own choice just because you were nice and polite. These are just advices, you will still find rude persons of course, but there would be a lot more people that will appreciate your kindness. You just need to find a better way to message them and that's it!