There's been a bunch of really well meaning people defining tag wikis for all kinds of things that we don't really need.
- please don't copy information from wikipedia to a tag wiki
- please don't define very simple terms (i.e. if the tag is London, you don't need to write that London is a city in the UK)
There's more info on this meta question, but since I saw a lot of people doing this, I wanted to post a note here. I didn't want people to waste their time (even though the help was very appreciated).