[SOLVED (cannot disclose answer)] user option in comments plugin not available to me, but available to others when both logged in?

In the discord @BluePower@sh.itjust.works was talking about getting a username in the comments section, and said there was a command called user. the command did not work for me, and didnt show up at all.

here are screenshots of the command list for @BluePower@mastodon.social and me.