"security risk" - So they're just trying to hand-wave a bluff at a huge community of developers? No one believes this. edit: also I feel bad for this community manager having to lie and apologize
* Constant vandalism
* Dubious user created content rendering computer non functional
* Trolling edits to cause breakages to people copy/pasting shell commands
* SPAM
* Maintaining the wiki
Before that we forced users to log-in for edits, then forced moderator approvals for everything, then forced moderator approval for new account. Then gave up and retired the Wiki.
So no, wiki are not free content. They are a pain, especially when your community tend to have many trolls/hostile individuals like the gaming community. It's not "downright lies" all the time.
About maintaining wikis, that is indeed a problem. In addition, most wiki software I used has extremely clunky administrative tools which make moderation way more challenging than needed.
I used to maintain a tiny private wiki for a previous job, and even in a very small operation (10s of users), it was a disproportionately large maintenance burden.
Indeed it is not free content, the volunteers that edited the UE4 wiki must be pretty disappointed. But Epic isn't broke and the vague reasoning they offer is insufficient to me and many others.
p.s. Coincidentally I am a daily user of AwesomeWM. Thanks for your efforts!