goodfaith labels/contridictory lalbels ex mspec lesbians bi lesbians etc Though the topic ive seen be divided the people who do believe its bad is because of the fact that it twists already put definitions of certain idenitys that have set definitions and can spread misinfo abt them

also some weren't intended to be good-faith like lesboy which was a term for butchs and multigendered ppl but bc of cis men using the term it ended up going to shit ad becoming good faith

this isn't the best explanation but yeah