All of you fretting and asking and speculating need to chill out. This person does this coding work completely for free, on the side after paying bills and whatever other responsibilities they have in real life. LiteLoader and Mixin are big undertakings – if it were easy, somebody else would have already replaced them. I want this stuff really badly, too, but I understand there's more to life than Minecraft mods and their loader foundations.
When Mumfrey says it's dead, it's dead. Until then, take five minutes to read the last couple pages where details have been given and RELAX.