It's important to note that the pentagram and pentacle have been associated with many different cultures and traditions throught history, and their symbolism is not inherently good or evil. However, in modern times, the pentagram has become strongly associated with Satanism and other forms of occultism, due in large part to its use by Anton LaVey, the founder of the Church of Satan, in the 1960s.
LaVey used the inverted pentagram (with two points up and one point down) as the symbol of the Church of Satan, and it has since become a popular symbol of rebelliousness and counterculture. However, it's worth noting that the inverted pentagram is not traditionally associated with Satanism, and was actually used in medieval times as a Christian symbol of the five wounds of Christ.
Unfortunately, the association of the pentagram with Satanism has led to misunderstandings and negative stereotypes about the symbol and those who use it. It's important to remember that the pentagram has many different meanings and associations, and its use in any particular context should be judged on its own merits rather than preconceived notions about its symbolism.