Think it might help if people are outspoken about this on social media.
For example, regarding the 'ME is not CFS' debate, there is this sense that patient organisations and researchers conflate the two out of opportunism. And that the non-severe patients don't get the difference and are happy enough with ME/CFS.
So if more severe patients speak out about this, that they prefer ME/CFS rather than ME, that they don't think the ICC are superior compared to other criteria, etc, then this might be helpful for newcomers to understand the situation.
The 'ME is not ME/CFS' clique is probably a minority, but they talk about this constantly and aggressively.