At check in for my flight yesterday from FLL I was asked (unprompted) if I wanted to upgrade from WT+ to Club.
I fly long haul at least once a month and 50% of the time I'll go for an upgrade it if its available and the price is ok. When I enquired how full the flight was and if the seat beside mine was empty I was told that it was full and the space beside me was no longer free and he suggested I'd be more comfortable in club.

I declined but he kept pushing the question, asking me 3 more times if I wanted to do it before finally accepting I was happy where I was.

What makes it odd is on boarding I discovered that WT+ wasn't even half full and the seat beside me was empty. Not sure why he'd tell me otherwise.

Is this normal? Is there an incentive for check in staff to push paid upgrades?