I think the most annoying ones are whatever little bitches have the nerve to tell Homestuck fans to stay away from anime conventions because Homestuck isn't anime--and then toddle off to gush over all the Avengers, MLP, Dr. Who, Batman, Star Wars, Disney and Once-ler cosplayers at the exact same cons.
My next conventions and events:
Anime North 2017
Niagara Falls Comic Con 2017
ETD = Estimated Time of Debut
Sans - ETD CB 2017
Gamzee Makara - Lususswap AU - Ongoing
Totakeke - AN 2017
L - AN 2017
Big Macintosh - AN 2017
Sable Able - ETD Winter 2017/2018
Penelope (Sly 3) - ETD 2018
Team Skull Grunt
Clawdia (Fighting Foodons) - ETD 2018
Soap may be a four-letter word, but use it anyway.