The same with Japanese blood types. I read the descriptions, and to me, all 4 blood types sounded pretty much identical.
And as for astrology, the thing is, they are always so vague, that they can mean anyone and anything. "You'll be happy about something this week." Well shit, most people are happy at least one second every week, even I am sometimes happy even though I'm most of the time really depressed, pessimistic and suicidal. Or, "You'll meet a person soon". If you don't live in Antartica, chances are you will meet someone. In other news, water is wet.
I don't believe in the zodiac signs either, but if I did, the 13th zodiac sign, the snake bearer, is the best. However, I might believe that the birth season (summer vs winter etc.), influences the person somewhat, but I dunno. And it does at least influence a person's health, according to scientific studies.
I hate MBTI because I am half introvert, half extrovert, and the dumb test thinks that a person is either oversocial butterfly Toreador, or a basement-dwelling neckbeard Gangrel, no in-between Brujahs accepted.
No idea what eannagram is.