How to Create a Private or Public Channel on Telegram? 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. But a Telegram statement also said: "Any requests related to political censorship or limiting human rights such as the rights to free speech or assembly are not and will not be considered." With Bitcoin down 30% in the past week, some crypto traders have taken to Telegram to “voice” their feelings. Content is editable within two days of publishing
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