NEW YORK –WitchsFest USA has been held each summer for the better part of a decade on Astor Place, but this is the first time the event has been deemed “spam” on Facebook, or at least the first time that a flag has impacted promotional efforts for the day-long street fair. According to co-founder Starr RavenHawk, posts touting the event have been widely removed as spam, and she herself has been subject to filtering that prevents her from even using the word “witch” on the social media site. All seemed well the morning of June 18, RavenHawk recalled, but when she got home at the end of the day she discovered a number of automated messages in her Facebook account. “All the posts, videos, and event pages had been removed as spam,” she said. Moreover, the same thing happened when those posts were shared by presenters, vendors, and others seeking to encourage attendance.