Communicate with offenders via the bot

[r4zzz4k]

I propose the following flow for managing offends and related bans:

1. Moderator registers an offend in the chat
2. Bot limits posting ability of the offender
3. Bot posts a message in chat requiring offender to start a chat with the bot
   After this, offender has three options:

• Keep participating in reading mode forever
• Leave the chat
• Start the bot
  As soon as the offender starts the bot, bot posts notification in admin chat requesting to communicate with the offender. The communication itself should be help in chats bot-moderator and bot-offender. During this exchange moderator can decide whether the warning is enough or temporary mute is more viable option. Moderator picks the action, bot applies it to the offender.

Pros:

• We push at least some of chat members to start the bot, which would be a useful channel for communication.
• Moderators can stay anonymous in specific situations.
• We will start registering reasons for restrictive actions.