Obviously they won't be confused if they don't know something may be on-going, i thought we're talking about showing message/information/warning to all users
My first idea was that client (bitcoin-qt) should display this message immediately in case of
blockchain has been reorganized. But I do not like hardcoded voluntary assigned constants,
for example, 3 blocks for mainnet and 20 blocks for testnet. And we will spend too much time
discussing the message itself.
So, it would be better to configure this behaviour in command-line arguments or bincoin.conf
file and show no warning by default.
It would be much better if somebody with good English skills suggest this proposal to core developers.