But that isn’t the definition of shill - that is part of the Wikipedia entry on shills, and the part you posted doesn’t include some important stuff that is included in the entry. Here is a definition of shill:Perhaps in your opinion shilling is deliberate, but that's not the actual definition. I'll post it again, as you don't seem to understand based on your comments about the 'negative shill':
"A shill, also called a plant or a stooge, is a person who publicly helps or gives credibility to a person or organization without disclosing that they have a close relationship with the person or organization."
If you were given a free radion (for example):
MnFish Post - 'Hey radions are amazing, you should buy one' = shilling
MnFish Post - 'Hey, I got a free radion and they are amazing, you should buy one' = not shilling.
Hope that helps