Cryptocurrency donations for bots, groups and channels
Show a button for sending quick donations to maintainers of bots, groups or channels using cryptocurrency. This could use either an established cryptocurrency like Bitcoin, Etherium, EOS, etc. – or some…
4. Paste the invite link you generated into the channel, as a post.
But how is it workaround? Basically you just change your group from public to private.
Pre-approval by an admin would stop that