tbf a lot of quirky "neurodivergent" tweens online are also self diagnosed and use it to justify their own selfish/immature behavior
the only difference is that you're supposed to be insufferable as an adolescent and you're supposed to grow up and out of it, not be proud you're in a perpetual state of arrested development well into middle age and beyond
I mean, Asperger's wasn't even considered an official diagnosis any more when he claimed that (in the US it hadn't been for almost a decade), so that itself should have been indicative of uninformed self-diagnosis.