In German you can use βGuten Tagβ as greeting when you see meet someone. When writing mail, you can also use it as greeting even if it is not that common, to use βGuten Tagβ in written conversations.
BUT: When you use βGuten Tagβ at the END itβs like a βFuck off!β (regardless of written or in verbal communication) without being an insult.
"You don't like it? Fine then, we buy it and force it on you!"
Classic Microshit.