Wow…Just wow.The album was first released in 1973, but not on CD.I am ashamed for everyone involved that I have to explain this.As for the other chasms in your knowledge, AccurateRip does not serve metadata. Rippers use other services, such as freeDB, for that.
Many different people submit CD metadata to the databases, and there is wide variation in how they all interpret the meaning of the different fields (as well as outright errors). Unless you check every time you are about to rip, you will often get files with tags that are not what you wanted.For someone who has ripped as many CDs as you say you have, I am surprised that this is all news to you.
I fix the errors before I rip and submit
What are pressings according to AR and how does this differ from what pressings are in real-life?