If you eat Chinese food, does that make you Chinese?
Meditation techniques alone do not a religion make.
They are only tools.
The ultimate goal of Buddhism is to recognize the non-existence of a personal self (theraveda) and to identify with all that is (mahayana).
Satanism is devoted to the enhancement of a sense of the personal self (ego) as well as a rational enjoyment of the pleasures of life.
We don't care if the ego is an "illusion" or not and are here to enjoy the ride in any case.
That is about as far apart as one can get from Buddhist goals and perspectives.
We want to live.
They want something else.
If you want to live you are in the right place.
If you want something else then you are in the wrong place.
(Now I'll read the other posted replies).