I stumbled upon the following sentence:
言いだしっぺとして、10人がんばります!
Context: a person is told to invite 10 persons, and seems to answer "言いだしっぺとして, I will try my best to get 10 persons!"
What does the 言いだしっぺとして part mean?
What nuance does it bring to the sentence, compared to a simple "10人がんばります!"?