Zero. Zip. Notta. We don't tip the Maitre d'.
We tip our waiter, assistant waiter and bar server very well.
On our last cruise, we walked past the Maitre d' seven nights, and not even eye contact with the guy. On our last evening at sea, he shows up..... glad-ragging us, big smile, asking us if we would like for him to take our picture, acting like he's our long-lost relative. Couldn't have been any nicer.
I don't think so! Homey don't play that.