Mark Wilson writes: After making it easier to report abusive tweets and increasing the size of its anti-troll team, Twitter believes it is getting 'bad behavior' under control. As well as bullying of acquaintances and work colleagues, Twitter has also been used to attack celebrities, the gay community, religious groups, and more, with many people feeling driven from the site. It seems that the decision to take a very hands-on approach to troll tackling is starting to pay off. The head of Twitter in Europe, Bruce Daisley, says that the tools that have been introduced have had a real impact on trolling. He goes further, saying that there is a direct correlation between the release of new safety tools and reporting mechanisms, and the drop in unacceptable behavior.