As someone who has been in the SEO industry a long time I can tell you that some of this is terrible/spammy advice...

Buy KW rich domains and pay some copywriter to crank out 4-5 pages?! Are you serious?

Twitter has no SEO Value?...just so you know...the SE's came out and said that authoritative tweets absolutely have value....While they don't pass "juice", they can help you in the SERPs

I'd hold off on that hug if I were you...