what is legal marijuana?

The question may be a faux paus, 'cause I see some of them are your advertisers, but I gotta ask.
What is it?
Why is it legal?
Does it contain THC?
Can you use it to rip people in trading?
Have I been ripped off already?
I have purchased the dankest smell and taste, but, without the effect I was looking for. Was that legal marijuana?

the "legal bud" is just dryed up crap
no Thc
dont piss yur money away on that stuff

I would hope you'd be able to tell if you got weed or some bunk stuff...