Well, statistically the individuals most likely to frequent an alternative social media platform are those with a) the technical proficiency to do so, b) Weak social anchoring to the network effects of mainstream platforms, and/or b) people whose past social interactions have led them to no longer have access to those platforms, ergo by self-selection bias there’s a high probability of finding other high functioning individuals on the spectrum on this platform. Lemmy/Piefed’s primary use case is basically socially-awkward-networking.