Thread over.
They take a sample and match it against a criteria just like I predicted. No way they are going through every single one.
Ended the thread ... Good night.How does it work?
We take a sample of your follower data. Up to 500 records depending on how 'popular' you are and assess them against a number of simple spam criteria.
On a very basic level spam accounts tend to have few or no followers and few or no tweets. But in contrast they tend to follow a lot of other accounts.