ABC - Oct 21 - LGBT Australians have criticized Grindr for allowing predators to easily create new profiles, despite reporting them for harassment or assault. Grindr users only need an email address to create a new profile and no other verification information, like a mobile phone number, is necessary. Unlike other dating apps such as Tinder, Grindr users don't opt-in by swiping on a profile and agreeing to message with someone. That means anyone can message anyone on the app. Grindr also limits the number of times a person can block someone on the app. Users can only block ten profiles per day; unlimited blocking is only available to people who pay for Grindr's premium version.