I was only bragging because I read a book about 25 years ago, a 'Latin For Dummies' thing. I haven't really much clue other than the phrases we still use today.
Very few of which we seem to pronounce as originally spoken, even by those folks in the medical or legal professions.
Such is language I guess.
Pro bono publico: Caveat emptor ET caveat vendor.
The rules have been tweaked to prevent new members from posting links and other potentially fraudulent behavior but we all still need to alert about private transactions. If the other party is a new member with no or very few posts, maybe don't take the risk. Further if the deal sounds too good to be true, it probably isn't.
Be safe, be careful, and caveat... buyer or seller.