The Wikimedia Foundation wants to work on two things that affect how we patrol changes and handle vandalism and harassment. We want to make the tools that are used to handle bad edits better. We also want to get better privacy for unregistered users so their IP addresses are no longer shown to everyone in the world. We would not hide IP addresses until we have better tools for patrolling.
We have an idea of what tools ‘‘could’’ be working better and how a more limited access to IP addresses would change things, but we need to hear from more wikis. You can read more about the project on Meta and post comments and feedback. Basically, we need to know if there are workflows IP masking would break that we need to work on so that it doesn’t become a burden on the communities. Also, this is the best opportunity to push for tools that would make fighting harassment, vandalism and spam easier. Take it.