[madcat123]

Sure, except that tippers (users) are not likely to be in position to judge the quality of a commit, nor really want to wade through hundreds of commits to decide which ones might be worth spending money on, and for the most part, just want to support the development of the project rather than micro-manage it. It's a nice ideal us developers can dream of, but the model implemented BitHub is just easier to use.

To use a restaurant analogy, a shared tip jar that gets split evenly at the end of the night results in much fairer distribution (and includes the chef and cashier as well) as opposed to personalized tips which get unfairly / unevenly distributed between waiters. Most people tip because of the full service, from ambiance to service and cooking, not just the front-man performance.

And you can still always ways to tip individuals developers (or waitresses) personally if you so wish.

[BHSPitMonkey]

Perhaps this would create an incentive for contributors to better explain the significance of their changes in their commit messages. Whether or not this would be a positive effect is up for debate.