I think that line is so interesting because we learn later that Blanc's invitation to Bron's island wasn't anonymous at all. So while he's telling the truth, in his experience anonymous invitations are bad, he's using it to lie to Bron. Bron would've been better off heeding Blanc's warning.
dfsmitty0711 t1_j2drqso wrote
Reply to comment by BootsyBootsyBoom in Knives Out is fantastic: review from a different perspective by madman_trombonist
I think that line is so interesting because we learn later that Blanc's invitation to Bron's island wasn't anonymous at all. So while he's telling the truth, in his experience anonymous invitations are bad, he's using it to lie to Bron. Bron would've been better off heeding Blanc's warning.