Okay, but if people are already using their “favourites” list as a wishlist, what’s the difference? There is already a de facto whishlisting system that many, many people use, it’s just not called that. If people are using a wishlist, why not call it what it is? If you, personally, don’t want to use a wishlist, that’s fine. No one is saying that you have to. But clearly many people find it useful/desirable to have a wishlist.
Personally, I don’t have much interest in receiving specific cards and I probably wouldn’t go out and hunt down a specific card just because someone had it on their wishlist BUT I still often look at people’s “favourites” (which, for many users = “wishlist”) to see if I happen to have one of the cards they’re hoping for or to see what kind of cards they like and if I have something similar to one of their wished for cards.
If you don’t want to influence what cards people send you and would prefer not to state any preferences whatsoever, that’s absolutely fine. I followed this paradigm initially because, like you, that was the takeaway I had from reading the guidelines as well. After sending a few cards however, I realized how much joy I got out of trying to match people’s interests and desires. After that, I went back and edited my profile to add some preferences and guidelines in case there were other people that felt as I did and got a lot of pleasure out of trying to match a card to a user.
This is all optional. If you don’t want to state preferences, don’t. If you don’t want to try to match other people’s preferences, don’t. If you don’t want to have or create a wishlist, don’t. I’m not saying that this is something that everyone should do. I’m saying that a lot of people are already doing this. So far, I’ve encountered more people that use the “favourites” list as a wishlist than as a list of favourite cards receivied. (Such people have already posted in this thread, in fact.) I don’t see how adding separate a separate favourites and wishlist would be any different from the system that’s already in place beyond making it clearer what the actual intent behind the heart was. Rather than having one function that some people use for one thing and some people use for a completely different thing, there would be a separate function for each of the two main use cases.