User blog comment:Dragonjet/KC3改/@comment-5935877-20150710135813

"Play via DMM is made for our overly cautious group of friends who still worry about safety. Playing it on a frame, with backgrounds and translations, defeats its purpose. Who of us worries about safety that much but still applies customizations and uses an iframe? Therefore DMM gameplay will only be at the DMM website itself, which as mentioned, is meant for the cautious."

But at least you don't have to delete it and "some people" doesn't mean everyone :|.