more newbie questions(im stupid..... i know)

i just learned some info about faking/hiding/blanking referers. i dont completely understand this yet but:

*Do i only need to practice these techniques if i am doing something wrong or should i say if i am a black hatter?

*What exactly are black hatter techniques and are they effective?
(i read about some bh techniques i.e. keyword stuffing, duplicate content, and spamming, but i kno these arent effective because google has a way of detecting these things now)

sorry if these are newbie ridiculous questions but i did use the search function first b4 asking?

You want to hide where your traffic comes from when you are doing something against the cpa company's terms of service otherwise they will ban you without paying.
Things like using craigslist, incentivizing, and other things that may not be allowed.

thank you for being the only one to acknowledge my stupid question.

it's not a stupid question at all.. it has been answer here many time, so try searching. Also keep in mind that sometimes when you blank the referrer, that will also send up red flags, I have (and am) using cpa re-director effectively.