They're invented spellings--and ugly ones at that--so they're automatically awful in my book. Also, they don't even look like they should be pronounced like Natalie and Mallory; Nadaley looks like Nuh-DAY-lee and Malorey looks like Muh-LOR-ee. (Although, as a testament to the fact that I've been spending way too much time on naming boards, I did recognize them as Natalie and Mallory before I clicked on the link. That makes me sad.)