Neiro deserves to be the worst memecoin because they tried to send a lot of tokens to Vitalik's wallet and claim to be the largest token holder for nothing.
If things be or happened exactly as you have explained it, then the Neiro team are nothing but a bunch of scammers trying to ride or hype on Vitalik's popularity and reputation for their own selfish interest and benefit, but then, good thing that Vitalik showed them that he is not blind and won't let anyone use his name, his reputation as a bait to what ever be their agenda.
It is completely and absolutely wrong to send tokens to a person's personal wallet without his or her approval or request, and l love what Vitalik did, if he had left those tokens on his wallet, those project owners will continue to use his name to promote the token, and in no time, alot of other scam memecoin developers will come on board and use the same strategy to scam a lot of people.
+1 karma