I've had a rollercoaster of opinions on the word "queer". Yes it used to be exclusively a slur but over time it became less of an issue and I started to like the word as an all encompassing term instead of saying "LGBT" it seemed easier to say queer. Unfortunately then you had all these self insert "quirky" straight people pop in and start using it as a new identity because they wanted to identify into an oppressed community. So then they all started saying "LGBTQ" which defeated the purpose of using queer as a general term. It's because those people were not gay or bi or even trans. They were basically girls who wanted to wear pants and dye their hair blue while pretending to be oppressed so they shoehorned in the Q onto the end of the acronym. The word was already a slur but gaining some use as a decent 1 syllable word to replace the acronym. Then it got colonized by some disgusting people who also manipulated the acronym to include queer. You could no longer logically use queer to replace the acronym which also contains the same word. Slur + no logic + worst people = stop using it.