Recently I've begun to notice more and more adoption dens in giveaway chat holding multiple lions that they're actually selling by putting a price in the footnote.

I believe this shouldn't be allowed in the case when they're advertising "adoption dens" implying most if not all lions are free. You aren't allowed to link a cave with lions up for trade, so why is this different?

I'm willing to expand on this further to any questions. Explanations for "No's" is appreciated