A necessary, if sometimes tasteless condition of enjoying Anime. The nerdrage is driven primarily by people with high self-esteem and low attractiveness trying to be taken remotely seriously dressed in bunny outfits, magical girl dresses and costumes from the latest shonen series.
More cosplayers need to remember that there are other people who might not like seeing a favorite character being played by their fat pig-disgusting ass.
It can be pulled off (and very well) with the right person, but that person is probably not you. If it is, by all means go ahead. But it's probably not.
Also, fat people should wear as much clothing as possible. Pic partially related.