[prower]

This industry mostly provides very ephemeral services, so it's almost never a matter of life and death (the entire multi-million email marketing sector could implode overnight and life would go on just fine), but you still charge money for those ephemeral services, and the least you could do would be to take your screw-ups a bit seriously.

I repeat, there's a big, big value in being friendly and basically "a human", but the very first starting interaction must be serious, not a joke.