In its use here, it is meant to designate those people for whom gothic is who they are, not what they dress up as. Satanists includes some Theatrical and Experimental Satanists and some Proclaimed Satanists . This is a very small percentage of Goths. Satanists can be found in almost any random group of people. They are not exclusively Gothics.
Vampires also comprise a very small percentage of Goths.
There are many people who have an interest in vampires, but in this category we specifically mean those who are a little too enthusiastic.