I've been very annoyed at/interested in non-obvious menu item labels lately. For example, on this site we have "The Source" and "The Stats"–I would have no gues

I've been very annoyed at/interested in non-obvious menu item labels lately. For example, on this site we have "The Source" and "The Stats"–I would have no guesses as to what those mean. I see this with my own website customers as well. Instead of "Pricing", they use "Investment" and instead of "Contact", they use "Hello" or "Inquiries". Does anyone have links explaining if/why this is bad?