I met an omnisexual person in real life. I was at work (during June) and had on rainbow earrings and a pronoun pin, and someone came in with a pride shirt and we complimented each other and stuff. Originally I thought she was bisexual, but she was Omni. And yeah that was fun.
She was also a middle-aged(?) Married woman so like gay rights! not a trend! Yay!