@freemo some people prefer GRSM. it's gender, romantic and sexual minorities. it does a nice job of including those +s without having to add more letters.
but yeah, I've never seen anybody actually use LGBTQQIAAP except self referentially to the idea of adding the letters, otherwise people almost always just do LGBT+ and occasionally LGBTQ+ which, is ironic considering the Q is honestly slightly contentious as not everyone is comfortable with the queer label.