I think something changed with discord and now it doesn't need the "#" sign so just: artie9440 should work. If it still gives you grief, just capitalise the name so it's Artie9440 instead of artie9440.
I think something changed with discord and now it doesn't need the "#" sign so just: artie9440 should work. If it still gives you grief, just capitalise the name so it's Artie9440 instead of artie9440.