I'm profitable in 5 verticals, but ok, let's talk gambling. Was wondering when you'd use it against me. IMHO, the bottom of the ethical shitlist looks like this:
Gambling
Porn
Payday Loans
Escorts
As you can see I remain 2 full notches above you. Suck it
As for webspam, never have, never will. I have some reliable ways of ranking sites inside the Google guidelines, working on a few specific factors - nothing remotely dodgy.
I will share my methods with you for £25k in cash. It's unlikely you could work them out just from looking at my sites, my competitors haven't managed it. I think that's actually well worth it but I can't imagine you taking the risk...