You're lucky I saw your post son... read on...
Last year I got a sweet EMD and it turned out its previous owner raped it with x-rumer blasts and god knows what. I built a nice site, high quality content and Google wouldn't even index it. I did a few directories, social marketing and waited 6 weeks, nothing. Google didn't give a fuck.
I came here and asked for advice... got exactly the same answers as what you got above. (e.g... get rid of it, sell it on flippa, you're fucked, move on, etc...)
What I did instead is I filed a re-consideration request on Google, wrote an honest message about how I bought this domain and its previous owner has abused it etc... even added a link to the wayback machine to prove my point. I said my objective is to launch an informative site and provide good content for people etc... (which wasn't completely false, although I didn't mention I'll be sticking in a few affiliate links
)
1 week later, my website was indexed and entered the Top-30. Now it's Top-10 and been there for a while.
Just goes to show, the advice you get in here isn't always the best. You gotta use your common sense sometimes... Google created the re-consideration request for a reason.