Welcome and thank you for your helpful edits! Please keep in mind that if you are adding new facts to an article, a citation is needed so that other editors can verify accuracy. This ensures that the Coppermind reflects canonical information whenever possible and does not stray into theory or speculation. For example, I added a new reference to your edit that Bloodsealing stamps eventually disappear; this is definitely accurate per the text, but without a citation for that chapter, other editors would have a hard time confirming it and could mistakenly remove it. You will certainly run across uncited facts on the wiki, but many editors are continually working to clean those up.