As it stands, /smelt automatically smelts whatever you hold without any requirements (other than having Ult of course).
It might be preferable for you Ultimate guys to have the /smelt command with only a slight delay (speaking <5 seconds) but require coal to execute (1 coal per 8 items as with a furnace).
It should not be a huge hindrance for ults using the command and would help to get lots of coal out of the market.
McGen Im letting you know now, you are coming across as a bigot here and its kind of off putting.
I understand your point and opinion, But when I have a list of 100 things to fix, your pussy, snappy, sassy comebacks at why im not focused on a pretty Null issue at the moment is pretty frustrating to deal with. Id appreciate a little consideration for the positive things ive brought back instead of the constant negativity.