I saw someone that seemed knowledgeable on Reddit saying the "no antibody" thing is a red herring. Basically your body can spin that shit up quick if the virus hits you again with little to no consequences. I meant to read more about it.
The whole herd immunity by everyone going out and getting it thing still seems fucking stupid to me though. You want to get herd immunity by having a fucking vaccine... Not by everyone getting the god damn virus.