The SUCK Channel on Telegram, with a message saying some content has been removed by the police. Photo: Telegram screenshot. 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. Telegram message that reads: "Bear Market Screaming Therapy Group. You are only allowed to send screaming voice notes. Everything else = BAN. Text pics, videos, stickers, gif = BAN. Anything other than screaming = BAN. You think you are smart = BAN. While the character limit is 255, try to fit into 200 characters. This way, users will be able to take in your text fast and efficiently. Reveal the essence of your channel and provide contact information. For example, you can add a bot name, link to your pricing plans, etc. Telegram channels fall into two types:
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