Delts and arms yes, but pecs and legs as well?
Ramy supposedly did/does shoot his quads something crazy. A while back everyone was saying it was obvious. And they look like he did. Even Palumbo said so, though he had heard it was "water based stuff" which I take to mean hyaluronic acid. This product was/is mostly a fad, don't know how popular it still is. Just an extremely short acting volumizing of a muscle.
Why does the IFBB allow this? They could end this overnight by penalizing bodybuilders for having oil.
Because everyone is doing it, and in many cases it isn't "obviously" true where everyone agrees.
Many commentators think Hadi would have won the O if not for the delts. It was just too obvious this time around and there was so much talk about it, by Aceto, Palumbo etc.
Someone here on GB said Hany told Aceto at the O that he cost Hadi the Olympia. Hadi had actually said he would sue Aceto about a month or so back