for example, I've seen a lot of "don't say ace people don't have sex because that's harmful to the sex favourable aces" and the opposite: "don't say ace people can have sex because what about the sex repulsed/averse?"

and they're both valid points, but because of it, aspec posts have to cater to the entire spectrum or risk starting arguments over this. Ideally, people could look at an aspec post and accept that it's for a different part of the aro/ace spectrum to where they are, but that's where the public unawareness comes in

because outside of the aspec communities, there's so little understanding of what the terms mean, that people within the community have to make every post generic so that the unaware won't see one post and make an assumption for the entire community based on it.