While I don’t know of any Satanic churches that actually preach quite the same message this one does, there was The Process in the ’60s and ’70s, which taught that Satan had a legitimate role in creation and would, come the end times, be saved.
The Church of Satanic Love portrayed here, however, does represent a trend I’ve noticed over the years to remove certain features from traditional Christianity and ascribe them religions or cults that traditionally stood for something quite different.
Hence the title, Opposite Day.
Did you know Opposite Day is an actual thing? It even has its own day — January 25. Whether there is any connection to Scottish poet Robbie Burns, who is also celebrated on January 25, I have no idea.
Here is the Wikipedia entry on Opposite Day:
Opposite Day is an unofficial holiday, commonly observed on January 25, where every action is modified so that meaning is inverted. Once Opposite Day is declared, statements mean the opposite of what they usually mean. Usually, a person would say, “After this phrase is over, it will be officially opposite day,” and then Opposite Day will be officially started. Opposite Day can also be declared retroactively to indicate that what was just asserted had the opposite meaning of what was originally intended (similar to the practice of crossed fingers to automatically nullify promises). Play has been compared to a children’s “philosophy course”,[1] and the game has been used as an educational aid and suggested as preparation for “standardized testing”.
I like the line about Opposite Day being a “preparation for ‘standardized testing.'” So many things could be said about that.
There was also a movie called Opposite Day, but since it has Pauly Shore in it, there’s no point talking about it.
Of course, although there is a special day set aside, Opposite Day can always occur simply by being declared at any time. I could, for instance, declare it to be Opposite Day right now.
But I won’t.
And since there is absolutely nothing in today’s chapter that could remotely justifying posting a picture of a beautiful woman, I won’t do that, either.
Adramelech Defects 
I’m glad you went with a beautiful woman and not a man after talking about Opposite Day and all.
Some things can’t be opposited.
I find Opposite Day all kinds of confusing, but as long as there’s a photo of a beautiful woman at the end of your note, I’ll participate in whatever silly holiday or Satanic ritual you want.
A beautiful woman is always a justifiable reason for any silly holiday or ritual.