Thread:Jenburton/@comment-33042589-20170906102346/@comment-31798335-20170906103820

Yes, duplicate wikis are allowed. Per the Wiki Creation Policy:

"Communities are about working together. We allow multiple communities on the same topic, but we strongly encourage you to find and join an existing wiki instead of trying to create a new project about an existing topic -- for many interests, we may already have an active community that needs your help or a dormant project that you can adopt and bring to life. In the wider web, communities about the same topic tend to merge sooner or later, or the less popular project(s) are abandoned as editors move to the more complete website. It is much easier to incorporate good ideas into an existing community than to try to merge content or create "sister project" structures later.

Advantages of working together:

There is a better chance of reaching the number of active contributors needed to sustain a community over time New ideas can use already-developed infrastructure of established communities, such as templates, infoboxes, and help pages New ideas can enliven or provide new direction to a faltering community if presented with kindness and tact

Disadvantages of creating a duplicate community:

Covering the same ground in the same way as other communities makes it more difficult to attract readers and contributors Re-creating work that has already been improved by many collaborators can be tiring and unnecessary If you don't rewrite topics in your own words, you may be tempted to copy from other freely licensed communities. If you do, you must remember: Copying the hard work of a dedicated community may cause hard feelings, damaging the reputation of your community and making it more difficult to attract contributors You may not copy content from other communities, or from Wikipedia, without providing proper credit and a link back to the source Duplicating the exact text of another website severely penalizes the search engine results for the more recent community If you really want a separate community on an existing topic, please use your creativity to present the information in a different way -- you could be serious where others are silly (or vice versa), be opinionated where others are neutral, focus on fan activity or trivia rather than encyclopedic information, or anything else that will set you apart from existing projects. A community which only copies content from other communities may be closed if it fails to provide credit or begin editing the text to make the project different and distinct."