Just in the channel of Pavel Durov there was a news that now in any personal chat of the messenger, you can delete any messages without a trace. And not as before, only sent by you personally and only for two days - but also by strangers, too, without any restrictions.

Original message textIt's been 23 years since I used my own. The number of electronic private conversations has been enormous. I'm certain
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Over the past 10-20 years, there are millions of messages with thousands of people. Most of the communication logs are outside of our reach. Relationship and ex-friends remains available forever.
It's getting worse. Our partners will easily quadruple.
If you’re still in the past. When you decide to run for a girlfriend. Despite the fact that there is a lot of control over our data. Erase things for other people.
Well, we couldn't. Until today. It’s a matter of course. It doesn’t have to be a complete control over it. You can even wipe out if you want to. No trace will be left on any side.
This can be a question. The footprint is more important.
Looking through my phone inbox. And yet, somehow, I’m feeling free and in control.
Taking Back Our Right To Privacy
Today, we have ever had. You can now choose to delete any m ...
Page that announces this feature:
Taking Back Our Right to PrivacyIf we discard the lyrics, then Pavel decided that control over his digital history is more important than the unpleasant consequences that this function may entail.
In addition, there was an additional opportunity to preserve their privacy in correspondence: “anonymization” of sending messages. When this option is enabled, the messages will no longer contain a link to your account in the “From” field, thus it will not be possible to uniquely associate the text of the message with your person.
You can activate it in the “Forwarded messages” section of the “Privacy and Security” settings.
An ambiguous solution that not everyone can like, because now a person can delete any message, both his own and someone else's. Being offended, your interlocutor can completely reset the entire history of chat conversations without your knowledge. But at the same time, it gives people the confidence that they really control the situation and the word spoken in the heat of the moment, the frivolously sent photo - will no longer hang over them with a Damocles sword and threaten their future.
Update
In his channel, Paul gave a survey on the topic of new privacy opportunities. As you can see, opponents and supporters of deleting messages were divided approximately equally:
