About the complains..

[Matsume]

I thank anyone regardless but comparing being a waitress to this? How are we meant to tip the developers? When they come to give us the bill? Also I doubt waitresses are getting paid as much as SE dev employees and usually they get tips because the wages themselves are terrible.

First off all it's a metaphor.

Second of all the tip to SE's producers is meant to be in the case of a thank you note "you did a good job on this patch" as much as a suggestion "could you implement or fix this"

Third, the waitresses in other parts of the world are treated better than they are in America