Many casinos now allow you to put machines in the mode where they won't generate handpays, and will simply make you get a single tax form at the end of the session. Unfortunately, many have not yet implemented such technology.

Handpays fuck gamblers in various ways. They often create false "winnings" for the taxman, and they induce this tipping expectation which eats into what gamblers actually take home.

I would understand tipping if you had the option to go up to a counter and process everything yourself, where the to-your-seat paperwork and payment is a convenience. But here you have no choice. To me it feels like tipping the DMV clerk for processing my drivers license renewal, or tipping a bank teller for handing me my own money when I withdraw it.