The idea of a “tip jar” on blogs and other content sites ... to make it even easier to get people to click that tip button. Readers are not required to create an account or have a PayPal ...

Now it seems that Twitter wants to add a tip jar to users’ profiles as well, as suggested by a new button hidden in the app. Researcher Jane Manchun Wong (via the Verge), known for digging into ...

The “no tip” button is there for a reason, she said, and there’s nothing wrong with dropping a dollar in the tip jar.