I want to comment on this because I believe that more positive effect has done than negative. I know someone got interested to be in this community because of the airdrop and I believe this is just only a start of more airdrops to come in the future.

Maybe someone who doesn't believe in Steem has motivated because of quick bucks they earned on Steem blockchain. Although there are people who made their many fake accounts there is a possibility that someone created their real account and want to get their reputation higher because Byteball Airdrop based their airdrops on Reputation.