In 1908, the attendees of a masked skating carnival were delighted by William Fell's Skygack costume. He appeared alongside his wife, dressed as Diana Dillpickles (another character from the same author). Because one instance is not enough to prove a trend: At a masked ball in Monroe, Washington, in 1912, August Olson's impressive homemade Skygack costume, complete with notebook, won him first prize and a place on the front page of the local paper.
And from then on, people in elaborate costumes were always held in the highest regard and never thought of as kinda weird.
These proto-nerds were so dedicated to the art of social ostracization via costume that they even went to jail for it: In March 1910, the front page of the Tacoma Times informed readers: "Mr. Skygack is in jail!" A man named Otto James in a borrowed Skygack costume was arrested and fined $10 for violating laws against masquerading in public. No word on whether he was immediately beaten to death after being thrown in an old-timey jail wearing full dork regalia, so we are forced to assume he was. Rest in peace, brave hero.