Some ideas

[nikitasius]

Well.. here is one: Add flag "deleted" for deleted messages.

Mostly possible, but will require to alter a bit sqlite db which TG use. Edit calls which draw messages, which request them.
Idk will it be useful or not. Nice to know that discussion had been deleted, but negative is a time to spend.

w/o this feature deleted discussion can be easy detected on a vanilla client running on same device.

But still many folks asking for this 👍