“posting photos of non-natives wearing costume warbonnets promotes racism "  <—is not an attack.In my opinion, attacking someone verbally consists of bullying, insulting, using slurs etc. I am not attacking anyone; I am relaying valuable information.

Anon: I would hope that you could read my link called “Cultural Appropriation”, it is a button under my “Links". I also have a “References" page that links several articles written about cultural appropriation.

Intent is irrelevant, because whether or not someone wears a “Native American" costume or faux Warbonnet to be cute or cruel they are perpetuating the same outcome: racism.