As long as @Neo-Oli is actively monitoring the wiki changes, we are good.. Afaik wiki.termux.com has more content than help page on termux.com. Also I think @fornwall is okay with considering wiki.termux.com as official wiki

PS: open editing is what makes wiki more informative, also you'll need active moderation team to keep track of it..

Can you please show me a successful major project where the help inside the app is hosted on a wiki?

Both Archlinux and LineageOS only have a wiki as their primary documentation.

Imho wiki.termux.com should be hosted at http://pages.github.com

That's exactly what the help pages were. There were almost no contributions made for years.

Are the man and info pages for these OSes on a wiki too?

The man and info pages for Termux are also not on a wiki.

I currently think that the wiki is the way forward, and that the advantages of having information that can be easily updated and contributed to outweighs the risks.

Let's try it out, if there is a serious problem we can always switch back or to something else.

As I mentioned earlier if we switch help link to wiki.termux.com, we must have active moderation team to monitor the changes as site traffic would be increased.