In the ongoing battle agains trolls, abusive users and other rule-breakers, Twitter has expanded how it can attempt to squash tweet-based troubles. If someone is impersonating another through a Twitter account, or leaking sensitive personal data, anyone can now report it -- not just whoever is suffering from it. Perhaps more importantly, new "enforcement actions" will allow the company to deal with regular trouble-makers: those that simply create a new Twitter account when their previous one gets closed down.