this is something i've been confused about for the longest and is spamming black hat marketing ?
Depends on what type of spamming???
Like forum spamming with something like xrumer, or blog spamming with something like scrapebox is indeed blackhat, but can be used in a WH manor.
But something like email spamming without optin users is illegal and if you get caught you will soon be the new jail house "girl" down at the federal lock up.
I'm sure getting locked up for email spam doesnt put you to high up in the jail house hierarchy...
There are many countries where spam is still legal and is considered a normal business venture. You can't believe everything you hear folks. Its just like they say cp is illegal in all countries, a google search will prove otherwise. Its actually legal in 184 countries so by them saying thats its globally illegal, they are misrepresenting the law.