Thread:Sannse/@comment-25980608-20171029211355/@comment-8-20171030162134

No, anyone is free to make a wiki, even on the same subject as another, established wiki.

The best thing you can do to deal with this is to ignore it. If you keep concentrated on making your wiki the best possible, then that will be the wiki that shows in search engines, and so be the most popular.

This applies even if he copies your content. He is allowed to copy articles, but he must give attribution. And that will help your SEO too - especially as Google doesn't "like" copied content and generally gives lower prominance to copied cuontent.

So I suggest you simply forget about this wiki, and carry on making yours the best it can be