Telegram Bot to verify if users joining a group are human. The Bot sends an image captcha for each new user and kicks any of them who can't solve the captcha in a specified time.
Using the bot in the groups, users make a lot of mistakes thinking that the bot is not case sensitive and constantly the users of the groups have to inform the user that they are trying to get in, that there is a difference between upper and lower case letters.
Using the bot in the groups, users make a lot of mistakes thinking that the bot is not case sensitive and constantly the users of the groups have to inform the user that they are trying to get in, that there is a difference between upper and lower case letters.