It might be a question of degree. How much is likely fake, or cannot be fully verified?
10%? 30%? 70%? or more?
10%? 30%? 70%?
Maybe only 10% of the accounts are bots but they very well may be writing 50% of the tweets. If I had been paying advertising costs I would not be too happy and sue the poop out of them for fraud.
“ How much is likely fake, or cannot be fully verified?”
I don’t have a Twitter account, but I have a real FB account and also an alias account. I also have alias email accounts with Google and Yahoo. I don’t use them hardly at all, but I have never gotten any notices about them. I use them mainly when a site wants one of them to continue viewing the site, but I don’t want to give them access to the real information. I’m sure lots of our FRiends have alias accounts, too.