Lost hand history but I remember everything:
SBvsBB spot ( SB - weak 1 tabler, I had color note on him - spew rec/huge whale from 2017. Haven't seen him since,he is from Japan or South Korea)

100BB deep

Flop 2d2s8d he bet 1/2 I call with Ad6x
Turn Qd we check
River Kd he goes all-in....

I have nut flush but no blockers to 88 and QQ most likely hands he is playing this way for value. As for bluff I have no idea, some people will just push air there to fold nut flush