And a tip isn't a bribe. Thinking tipping someone so they don't sabotage the job they are already being paid to do is, to use the article's words "getting out of hand".

It is not unreasonable for me to expect that you complete the job you are paid to do, for the price we already agreed upon. Period. Tips used to be for good service, circumstances where you know that due to circumstance you're asking a little more of the staff.

Many of the "pickup" order sites I have request a tip. There is literally no service, and I'm not even sure how the quality of the order will be, as I've literally not gotten it.