I too got it (I can guess which contest!) for the first time in my few months of existence here. I was stunned, felt angry, depressed and could not focus that whole day. I even kept thining that CH must have hit that button accidentally. I had blue button immediately & SH informed me “A CH can decide to exclude certain creatives from their contest and continue working with a smaller group of creatives.” & “It’s been there for a while but rarely used” when I asked if this is new.
I too went @AlwriteyThen (great spirits!) way next day and got shortlisted in other project! In fact I went ahead & created a funny label for that contest! I had to have my sweet revenge.
But I feel this button in the hands of CH goes kind of against the grain of SH spirit. This is crowdsourcing platform, is not it?! If it has to be there than there has to be a stricter criteria, say after 10-20 submissions, a CH can use it. We are discussing about “No thank you”, I guess we can also discuss about this and request SH to rethink.