ZDNET RECOMMENDS The SUCK Channel on Telegram, with a message saying some content has been removed by the police. Photo: Telegram screenshot. A Hong Kong protester with a petrol bomb. File photo: Dylan Hollingsworth/HKFP. For crypto enthusiasts, there was the “gm” app, a self-described “meme app” which only allowed users to greet each other with “gm,” or “good morning,” a common acronym thrown around on Crypto Twitter and Discord. But the gm app was shut down back in September after a hacker reportedly gained access to user data. The optimal dimension of the avatar on Telegram is 512px by 512px, and it’s recommended to use PNG format to deliver an unpixelated avatar.
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