Board Thread:Questions and Answers/@comment-35549737-20180201045648/@comment-27345308-20180201060708

Forum is a very buggy extension, no wonder Wikia's removing it at some point.

Try going to your preferences and switching your editor to Source Editor. That will allow you to directly insert wikitext on forum instead of having to rely on MiniEditor visual mode to do it for you. All useful stuff will be available in wikitext mode except that you'll have to type them instead of using the editor like MS Word (the insert link, bold and italic buttons will still be available)

You can read about wikitext here. You can read about inserting links in wikitext here. You can also enable the view source button on forum in your preferences to see the wikitext behind other people's posts but if you view source of posts of users that use visual mode you'll sometimes see a lot of garbage generated by the visual editor in them.