If charge "photography fee" then there will be a "since I paid, I'm ENTITLED to shoot" mentality. The situation will be much worse.You organise cosplay for others to appreciate, not for photogs mah.
Photography fees is to deter "free-for-all" orgy by restricting photogs. Some of those cosplayers are stressed out with constant photography...even models/talents have rest.
Restriction of flash is because they are not talents/models anyway, why must they suffer paparazzi cams flashing.
Third point is just joking lah... but the idea is to have sufficient distance between photogs and cosplayers.
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