I agree that it adds a bit of work when you publish something open source. On the other hand, putting it on GitHub or BitBucket provides tooling that encourages others to submit changes, thereby potentially reducing the workload over time.
For example, I was able to include Marco's update to a doc file on the DFUnit project, simply by accepting his "pull request" on GitHub.
https://github.com/olaeld/DFUnit/commits/master
(Plus, if at some time, for some reason, the project is abandoned, it is possible for others to pick it up and continue maintaining it.)