Ineptitude mostly. Doing something that could be interpreted as creepy in full knowledge is either a calculated risk or the act of an asshole. Assholes might sometimes be worth hanging out with, or being associated with from a social/political point of view. Creepy people have well below average social skills more or less by definition; associating with them is harmful to ones reputation. That’s why one gets the feeling of revulsion/contamination.
Ineptitude mostly. Doing something that could be interpreted as creepy in full knowledge is either a calculated risk or the act of an asshole. Assholes might sometimes be worth hanging out with, or being associated with from a social/political point of view. Creepy people have well below average social skills more or less by definition; associating with them is harmful to ones reputation. That’s why one gets the feeling of revulsion/contamination.