Good god, thank you so much!
The Brigitte delay was the worst.
Everybody concluded that she is OP after playing against her for 5 minutes in FFA, and for the next two months the forums and Reddit were nothing but an echo chamber about how Brigitte will be the death of Overwatch.
It was painful.
And in the end the delay didn’t achieve anything: there were no significant balance changes until after Brig was available in ranked for hundred thousands of played ranked matches, and when Brig finally hit ranked, many people still had no idea how to play with or against Brigitte, and some were even trying her for the first time in ranked.
It was like every new content release ever, but now with two months of complaining before.