I would like to suggest case insensitivity for common @ commands to promote quality of life and consistency. Currently i've confirmed @Go, @GO, @LOAD, @Load are case insensitive and would be appreciated if other commands are too.
i.e. @Ii @iI @II, @ItemInfo, @Monsterinfo.
It is not game breaking but it can get annoying especially because on a windows machine when you type @ you hold shift and sometimes if you don't let go fast enough the next character is capitalized. like @Mi