Adding instructions for disabling bot's privacy

[slawiko]

Privacy has to be disabled, otherwise bot will not have access to group messages

[umputun]

Is it about private groups only? The current setup seems to work just fine without need to disabling privacy mode

[umputun]

I don't think it is needed. In order to ban users the bot has to be not just a member but even an admin.

When you create a new Telegram bot from @BotFather, the newly created bot is in privacy mode by default. A bot running in privacy mode will not receive all messages that people send to the group. Instead, it will only receive:

• Messages that start with a slash ‘/’
• Replies to the bot's own messages
• Service messages (such as member join and left notifications)
• Messages from channels where it's a member

[slawiko]

BotFather says

'Enable' - your bot will only receive messages that either start with the '/' symbol or mention the bot by username.
'Disable' - your bot will receive all messages that people send to groups.

In my group bot has admin access, but does not have access to messages if privacy mode is enabled. My group was created for channel's discussions. Group used to be private back in the day though, but now it is public.

Anyway, I tried to replicate basic setup:
created public group and added both bots in it. Gave them both admin permissions:

Mine has disabled privacy, yours has enabled:

but the fact it is working fine in radio-t chat confuses me, tbh. Would be nice to solve that mystery

[umputun]

The only situation I was able to reproduce this effect was the private group. Here bot won't be able to read all the messages without privacy change, but I don't think such groups really need the bot.

Maybe you should rephrase the PR and add an explanation about this? like "in some cases, for example for private groups, the bot needs privacy options to access all the messages ... ".

[slawiko]

Absolutely makes sense: 2a23248