Ok, I will explain, a seed found in a bag of weed is a red flag for it being a hermaphrodite.
That means it has hermied' and self pollinated.
Why would someone want to grow that?
Nirvana gives 10x freebies with every order labeled as "bag seeds", those are seeds that didn't pass their quality test, and otherwise would have been thrown away.
So if you think that you are cool for growing "bag seeds", you might just as well fake claim to be a virgin on national television, because to me that's equally as funny as saying "I grow bag seed", it only shows that you are poor and uneducated.