User blog comment:Kirkburn/Technical Update: February 15, 2017/@comment-5211495-20170216110728/@comment-5275700-20170216165817

Some of the most active English-language communities using Discussions are Nukapedia, Wookieepedia and The Elder Scrolls Wiki, but there are plenty of others. It's also part of newly created wikis, if you want to create one for yourself to play around with it.