An Aquarius loves to point out others' flaws and criticise them. Although he or she may not be doing it on purpose,
they believe it is their obligation to criticise others in order to help them perform better. Even though it may be a caring gesture, others don't like this.
Virgos also enjoy criticising others. They prefer to criticise people without cause because they are overconfident. Even though they may not always be correct, they won't pass up the opportunity to criticise others and feel good about it.
To bring out the best in people, a Cancer criticises them. They merely do it to make sure that the other person may develop and work on their shortcomings.
No malice is intended, but they enjoy criticising others just for the sake of doing so. If their criticism has even slightly aided someone, it makes them happy.
Scorpios are experts at hurling criticism, usually unwarranted criticism. They criticise even good things due to their nefarious motives in order to win the approval of their bosses.
They might feel it's their birthright to snoop into other people's affairs and shoulder the weight of the entire planet if they have even a small sense of power.