Tarra, you are misunderstanding me, if it's something I want them to have, it's something I know they will like or use, which is why I want them to have it.
I ignore lists because it makes it obvious how much, or little, has been spent. And let's face it, there's never anything for a very, very modest budget on a gift list.
I'm like others, never buy for baby before baby is born. For gifts I suss out what brand of various products they are using, and put a 'care package' together with a few treats for mum. It will always be appreciated ( so doesn't matter that Ive gone off list, not that I have ever been to a baby shower with one), and I don't feel pressured to spend more than I can afford. Win win and what gifting, giving and receiving, used to be about as op says.
I ignore wedding lists or requests for money because if it's a close friend I'd already know what they wanted or needed. If it's not a close friend they get a nice bottle of something, because again, its all I can afford.
Gifts lists and money requests are very awkward for people with limited funds, imo. And yes, I think they are extremely bad manners, the only acceptable gift list is in a letter to santa!