If one dislikes players nudging their games, one can tighten the tilts and set warnings as low as they will go, and put rubber feet on their games.

Conversely, if one likes manhandling their games, they can remove tilt bobs, set warnings to max, and put sliders on their games' feet for all I care.

Pinball can accommodate either preference, or anywhere in between. Knowing what one can get away with on a given game (which is not to say "how much they can cheat!") is all part of the strategy.

My own old, wimpy self, I like the rubber feet because they discourage me from even trying to push the game around, which would only mess up my shoulders even worse than they already are.

Never mind, already covered.

Worst case scenario: when a public game is discovered to just not tilt, you can be sure some players will want to get VERY physical with it.