I am running a wiki called Layer Wiki and if anyone would like to use it and maybe make some pages on there if you would like anyone can make an account then please do if you have any questions or anything just comment on this post i will try to reply as fast as possible and answer the question thank you very much if you check out my site and make some wiki pages on some stuff :)
here is the onion url: layer5k3lowvd3cetcmslbsxl3fn5gfwlgwx7rzjkwr2ircnmcnaymad.onion
UPDATE:
Layer wiki is now Layer Forum the onion url is the same so if you would like to join our forum you are welcome to and enjoy using it.