I take the point - in group signaling can be enormously valuable at connecting to an audience.
However, I'd suggest that "wrong answers only" is so hilariously mainstream at this point that it is no longer selective. It's funny maybe the first dozen times you see it, and after that it is simply a cheap call for attention. It doesn't feel like this would be a positive branding aspect.
To each their own, however. Perhaps this is the look Supabase is going for!
The best jokes that only folks deep in a particular tech understand come from it.
And understanding those inside jokes means belonging to a tribe.
Which in turn signals that a brand "gets" that tribe.