Walker Greenbank is still in two minds about whether it will take legal action against an anonymous tipster who allegedly used the Hemmington Scott bulletin board to defame the wallpaper group. CEO Aidan Connolly, confirmed that he is now aware of the identity of the anonymous tipster after lawyers representing Walker contacted Hemscott seeking co-operation the matter. But Connolly said he was undecided whether his company would take legal action against the person known as "Blaker". "We're still discussing this with lawyers," he said. According to the Mail, Blaker is a friend of Walker's former CEO, Charles Wightman. Connolly said that while he was generally "very supportive" of sites such as Hemscott, he felt the postings by Blaker were "mostly unbalanced" with some "intent" behind them. Earlier this week Walker threatened to sue Hemscott for alleged defamation published on its bulletin board. No one from Hemscott or the Financial Services Authority (FSA) was available for comment today. ® Related story UK shares bulletin board faces legal bullet