User blog comment:Mira Laime/Those Weird Things on the Internet/@comment-168424-20180626174919/@comment-26339491-20180627000235

We're already offering a number of features that you can only use if you're logged in, as a way of incentivising anons to sign up - such as notifications and certain editing options.

If we restrict editing any more to force registrations, we might use valuable anon contributions in return ... It's a thin line to walk. What remains is encouragement and acknowledgement by the wiki community that will hopefully motivate anon editors to sign up!