There's a class of people though, myself included, that do not like external validation. I thrive on internal validation on my perceived work product strength. I feel like I'm a better judge of whether my work is good or bad than a non-technical project manager.

It's different when it comes from a technical peer or a technical manager. There it definitely means more.

Closer to my point though, it was the continued repetition of the positive reinforcement. I'm talking a weekly occurrence where the situation did not call for the reinforcement. It felt fake and, to me, had the opposite effect as intended.