No kidding Twitter has spam/fake accounts, isn't that part of why Musk wanted to buy Twitter in the first place?

He publicly stated that he wanted to buy Twitter to clear up the fake account issue, he knew about the issue before entering the deal, when signing he waived due diligence that could have given him the opportunity to investigate the issue before signing...

Musk's own tweets will work against him if he tries to use the fake accounts issue to back out.