Portland is an ANTIFA HQ....these folks are asking for trouble.
After the KKK shooting in Greensboro, There was a series of Klan rallies held in Greensboro. The posters would appear, the police and protesters would show up but not the Klan. This went on for several years before people figured out they were being played for suckers.
Rumor was that it was high school kids making the posters.