http://qs1969.pair.com?node_id=174043

Consider I changed not only a typo but entire content of a message.

And there are many votes and other messages that replyed

Isn't this can lead to confusion and non-sence?

Say, I asked

is 2+2 equals to 4?
Then many people replays
Yes!
Then I changed its contents to
Is it true that Hitlair was a good man?
... and what then?