Today Twitter is making it possible to share block lists. The new feature will make blocking multiple accounts much easier and help fight abuse. If you receive large amounts of unwanted interactions this tool may be for, especially if you have several accounts or the abusers are targeting people you know to.
You can now export and share block lists with other people, or import another user's list into your own account to block multiple accounts all at once, instead of having to block them all individually.
Twitter says they're also working on additional user controls that will be announced in the future.