How to create a business channel on Telegram? (Tutorial) 4How to customize a Telegram channel? Developing social channels based on exchanging a single message isn’t exactly new, of course. Back in 2014, the “Yo” app was launched with the sole purpose of enabling users to send each other the greeting “Yo.” Members can post their voice notes of themselves screaming. Interestingly, the group doesn’t allow to post anything else which might lead to an instant ban. As of now, there are more than 330 members in the group. 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.
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