In the notification settings there are advanced filters to remove notifications from accounts that you don't follow, don't follow you, new accounts, accounts th

In the notification settings there are advanced filters to remove notifications from accounts that you don't follow, don't follow you, new accounts, accounts that have unconfirmed contact information. I don't know any other platform that offers so much control. I have been lucky to never experience this type of abuse but if I were under attack I would apply advanced filters until the storm passes. Twitter could certainly do better (and could take more of a stand against cut and dry abuse), but in the meantime there are tools in the hands of users today to take control of unwanted notifications.