To solve that problem we need require from bitcoin blockchain transaction.

> without realizing that Tweets can also be deleted.

Yep, just like NPM modules.

> also

But the point is they cannot be edited or replaced.

Neither can npm module versions without direct assistance from the company (which, if you were able to gain favor, you might be able to get Twitter to do the same).

The only difference is someone can't take over a tweet should the original tweet author delete their account.