You mean QR specific? Or societal, cultural, etc.? The later quite a few depending on the situation, I'll never pretend to be a saint.

QR specific however, I can't really think of too many more than would require attempting to break. The times I fly QR (at least so far and looking into the next 12+ months), I'm on a full flex D fare. I'd already have access to QR's lounges, priority access across the board, top notch service on board, etc.. And even the scant 7kg limit seems to be flexible for business passengers or at least when the staff understand the majority of the hand baggage weight is stuff that can't be checked in. Only been challenged on it once so far and like I mentioned up thread that conversation stopped immediately when they heard lithium batteries.

I think it's extremely different than passengers trying to pack 2 weeks worth of clothing into a carry on, and the airport staff also seem to have the same reasonable logic about it.

I think it's also no different than when I've flown other airlines with similar 7kg 'official' limits. Because I'm still checking a suitcase with my clothing that's 1/3 of of my total baggage allowance. I'd fathom I'm not the typical target for trying to extract some extra revenue. I've been in check in queues where they were weighing nearly everyone's carryons who didn't check in anything at all but didn't even bat an eye at mine, those are the targets for additional revenue extraction.