now. im no copyright expert. but i would think that the UHC being accessible in the way that it is. that you can literally go and fork it right now if you wanted. means that there wasnt a DMCA strike
also theres homestuck.net that still exists as it does despite the controversy when it first popped up specifically around it being mistaken for OG homestuck and that people didnt like that it scraped fanworks and wanted their work removed from the archive. why give a DMCA to one but not the other?