Hi, please add a list of all available commands. How are we supposed to figure out what commands are available if there are no hints or wiki? 😄

Hey,
No list of commands is required because they are all !
All commands you can use in server console can be used in Discord. Even one added by mods

I am referring to the list of available commands in Mc2Discord itself. Because it's not clear how to use player hiding, how to do account linking. Not obvious at all and no hints...

For that part the documentation is indeed a bit light
You have some comment before each field that explain how it works
For the account linking you have also this section https://github.com/DenisD3D/Mc2Discord/wiki/Advanced-Configuration#enable-account-linking
And for hidding player you can just do /mc2discord hidden add XXXX to prevent any message related to a player to be sent to Discord

And yet, why should we understand what commands there are through config? (which, by the way, very poorly explains how to lick the accounts).

Is it difficult to make a page with a list of commands, like:

Command section:
/command name <var> <var|var>

No, but documenting a mod like mc2discord take an enormous amont of time that I currently don't have.
Feel free to open a PR to improve the wiki, it will be very appreciated
Denis