There are only 12 zodiac signs, with several sides to each personality, and the rising signs, ascending signs, and moon alignments all must be counted, degrees to the chart. It only touches on the overall traits that may be compatible.
To call one month's sign compulsive liars, egoists, skirt chasers, and other negative adjectives is to judge without knowing the individual and all aspects of a person's personality. It speaks volumes , showing less than likable attributes.
We are all different. Watching and reading daily threads is telling a lot about a person. I would never presume to know about folks just because of their birth date.