>>842401People look for community, belonging. Furries are pretty open and inclusive, so a lot of strange humans end up among their ranks. Many are "dysfunctional" one way or other, and assuming a furry persona gives their imagination leverage on their lives. I'd define furries to three levels.
Level 0 - intentionally seeks and reads comics and watches with funny animals, plays vidya with funny animal player-characters, jacks off to furry porn. Special case: Draws furry porn for a living.
Level 1 - creates a funny animal roleplaying persona, "fursona", avatar or totem and roleplays this character when relevant. At this point you begin to tell a furry from a regular nerd/retard/human.
Level 2 - assumes he/she/it is a funny animal character trapped in a human body. These are the ones whining about fursecution without being ironic. Remember to wear a condom.